Bump stylelint-config-standard from 20.0.0 to 22.0.0

Bumps [stylelint-config-standard](https://github.com/stylelint/stylelint-config-standard) from 20.0.0 to 22.0.0.
- [Release notes](https://github.com/stylelint/stylelint-config-standard/releases)
- [Changelog](https://github.com/stylelint/stylelint-config-standard/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint-config-standard/compare/20.0.0...22.0.0)

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

package.json

@@ -41,7 +41,7 @@
     "shx": "^0.3.3",
     "style-loader": "^0.23.1",
     "stylelint": "^13.11.0",
-    "stylelint-config-standard": "^20.0.0",
+    "stylelint-config-standard": "^22.0.0",
     "webpack": "^3.10.0",
     "webpack-dashboard": "^3.3.1",
     "webpack-dev-server": "^2.11.5"