Bumps the root group with 21 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [org.apache.maven.plugins:maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) | `2.0.2` | `3.13.0` |
| [org.codehaus.mojo:build-helper-maven-plugin](https://github.com/mojohaus/build-helper-maven-plugin) | `3.4.0` | `3.6.0` |
| [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) | `3.25.5` | `4.29.2` |
| [org.apache.maven.plugins:maven-antrun-plugin](https://github.com/apache/maven-antrun-plugin) | `1.3` | `3.1.0` |
| [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) | `3.1.0` | `3.5.0` |
| [org.apache.maven.plugins:maven-jar-plugin](https://github.com/apache/maven-jar-plugin) | `3.3.0` | `3.4.2` |
| [com.google.guava:guava](https://github.com/google/guava) | `33.3.0-jre` | `33.4.0-jre` |
| [org.apache.maven.scm:maven-scm-api](https://github.com/apache/maven-scm) | `2.0.1` | `2.1.0` |
| org.apache.maven.scm:maven-scm-provider-gitexe | `2.0.1` | `2.1.0` |
| [org.mockito:mockito-core](https://github.com/mockito/mockito) | `2.23.4` | `5.14.2` |
| org.apache.felix:maven-bundle-plugin | `5.1.9` | `6.0.0` |
| [org.codehaus.mojo:animal-sniffer-maven-plugin](https://github.com/mojohaus/animal-sniffer) | `1.15` | `1.24` |
| [org.apache.maven.plugins:maven-surefire-plugin](https://github.com/apache/maven-surefire) | `3.1.2` | `3.5.2` |
| [org.apache.maven.plugins:maven-source-plugin](https://github.com/apache/maven-source-plugin) | `3.3.0` | `3.3.1` |
| [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) | `3.5.0` | `3.11.2` |
| [org.apache.maven.plugins:maven-release-plugin](https://github.com/apache/maven-release) | `3.0.1` | `3.1.1` |
| org.sonatype.plugins:nexus-staging-maven-plugin | `1.6.13` | `1.7.0` |
| [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) | `3.1.0` | `3.2.7` |
| [com.google.template:soy](https://github.com/google/closure-templates) | `2022-07-20` | `v20160111` |
| [com.google.cloud.tools:appengine-maven-plugin](https://github.com/GoogleCloudPlatform/appengine-plugins) | `2.4.4` | `2.8.3` |
| commons-io:commons-io | `2.13.0` | `2.18.0` |



Updates `org.apache.maven.plugins:maven-compiler-plugin` from 2.0.2 to 3.13.0
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](https://github.com/apache/maven-compiler-plugin/compare/maven-compiler-plugin-2.0.2...maven-compiler-plugin-3.13.0)

Updates `org.codehaus.mojo:build-helper-maven-plugin` from 3.4.0 to 3.6.0
- [Release notes](https://github.com/mojohaus/build-helper-maven-plugin/releases)
- [Commits](https://github.com/mojohaus/build-helper-maven-plugin/compare/3.4.0...3.6.0)

Updates `com.google.protobuf:protobuf-java` from 3.25.5 to 4.29.2
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

Updates `org.apache.maven.plugins:maven-antrun-plugin` from 1.3 to 3.1.0
- [Commits](https://github.com/apache/maven-antrun-plugin/compare/maven-antrun-plugin-1.3...maven-antrun-plugin-3.1.0)

Updates `org.codehaus.mojo:exec-maven-plugin` from 3.1.0 to 3.5.0
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](https://github.com/mojohaus/exec-maven-plugin/compare/exec-maven-plugin-3.1.0...3.5.0)

Updates `org.apache.maven.plugins:maven-jar-plugin` from 3.3.0 to 3.4.2
- [Release notes](https://github.com/apache/maven-jar-plugin/releases)
- [Commits](https://github.com/apache/maven-jar-plugin/compare/maven-jar-plugin-3.3.0...maven-jar-plugin-3.4.2)

Updates `com.google.guava:guava` from 33.3.0-jre to 33.4.0-jre
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

Updates `org.apache.maven.scm:maven-scm-api` from 2.0.1 to 2.1.0
- [Commits](https://github.com/apache/maven-scm/compare/maven-scm-2.0.1...maven-scm-2.1.0)

Updates `org.apache.maven.scm:maven-scm-provider-gitexe` from 2.0.1 to 2.1.0

Updates `org.mockito:mockito-core` from 2.23.4 to 5.14.2
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v2.23.4...v5.14.2)

Updates `org.apache.felix:maven-bundle-plugin` from 5.1.9 to 6.0.0

Updates `org.codehaus.mojo:animal-sniffer-maven-plugin` from 1.15 to 1.24
- [Release notes](https://github.com/mojohaus/animal-sniffer/releases)
- [Commits](https://github.com/mojohaus/animal-sniffer/compare/animal-sniffer-parent-1.15...animal-sniffer-1.24)

Updates `org.apache.maven.plugins:maven-surefire-plugin` from 3.1.2 to 3.5.2
- [Release notes](https://github.com/apache/maven-surefire/releases)
- [Commits](https://github.com/apache/maven-surefire/compare/surefire-3.1.2...surefire-3.5.2)

Updates `org.apache.maven.plugins:maven-source-plugin` from 3.3.0 to 3.3.1
- [Release notes](https://github.com/apache/maven-source-plugin/releases)
- [Commits](https://github.com/apache/maven-source-plugin/compare/maven-source-plugin-3.3.0...maven-source-plugin-3.3.1)

Updates `org.apache.maven.plugins:maven-javadoc-plugin` from 3.5.0 to 3.11.2
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](https://github.com/apache/maven-javadoc-plugin/compare/maven-javadoc-plugin-3.5.0...maven-javadoc-plugin-3.11.2)

Updates `org.apache.maven.plugins:maven-release-plugin` from 3.0.1 to 3.1.1
- [Release notes](https://github.com/apache/maven-release/releases)
- [Commits](https://github.com/apache/maven-release/compare/maven-release-3.0.1...maven-release-3.1.1)

Updates `org.sonatype.plugins:nexus-staging-maven-plugin` from 1.6.13 to 1.7.0

Updates `org.apache.maven.plugins:maven-gpg-plugin` from 3.1.0 to 3.2.7
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](https://github.com/apache/maven-gpg-plugin/compare/maven-gpg-plugin-3.1.0...maven-gpg-plugin-3.2.7)

Updates `com.google.template:soy` from 2022-07-20 to v20160111
- [Commits](https://github.com/google/closure-templates/commits)

Updates `com.google.cloud.tools:appengine-maven-plugin` from 2.4.4 to 2.8.3
- [Release notes](https://github.com/GoogleCloudPlatform/appengine-plugins/releases)
- [Changelog](https://github.com/GoogleCloudPlatform/appengine-plugins/blob/main/CHANGELOG.md)
- [Commits](https://github.com/GoogleCloudPlatform/appengine-plugins/commits)

Updates `commons-io:commons-io` from 2.13.0 to 2.18.0

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-compiler-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: root
- dependency-name: org.codehaus.mojo:build-helper-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-antrun-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: root
- dependency-name: org.codehaus.mojo:exec-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-jar-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: com.google.guava:guava
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.scm:maven-scm-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.scm:maven-scm-provider-gitexe
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.mockito:mockito-core
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: root
- dependency-name: org.apache.felix:maven-bundle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: root
- dependency-name: org.codehaus.mojo:animal-sniffer-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-surefire-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-source-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-javadoc-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-release-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.sonatype.plugins:nexus-staging-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: org.apache.maven.plugins:maven-gpg-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: com.google.template:soy
  dependency-type: direct:production
  dependency-group: root
- dependency-name: com.google.cloud.tools:appengine-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
- dependency-name: commons-io:commons-io
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: root
...

Signed-off-by: dependabot[bot] <support@github.com>

* Generate RegionCode constants for testing.

This generates the RegionCode class that contains string constants for testing using the build tools.

Context: b/237181793

* Fix typo

* Use plain strings for region codes not in the metadata.

* Apply code review suggestions

* Rewrite ClassWriter with Builder pattern and add javadoc support.

* Use setJavadoc instead of accumulating.

* Add gitignore

* Ignore and remove jar files

* Delete java/lib directory

* Create download-junit-jars.sh

* Update build.xml for downloading junit&mockito jars

* Delete tools/java/java-build/target directory

* Delete tools/java/cpp-build/target directory

Bumps [junit:junit](https://github.com/junit-team/junit4) from 4.13.1 to 4.13.2.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.13.1...r4.13.2)

---
updated-dependencies:
- dependency-name: junit:junit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: mandlil <138015259+mandlil@users.noreply.github.com>

Bumps [org.codehaus.mojo:build-helper-maven-plugin](https://github.com/mojohaus/build-helper-maven-plugin) from 1.9.1 to 3.4.0.
- [Release notes](https://github.com/mojohaus/build-helper-maven-plugin/releases)
- [Commits](https://github.com/mojohaus/build-helper-maven-plugin/compare/build-helper-maven-plugin-1.9.1...3.4.0)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:build-helper-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>