Bump natsort from 6.2.0 to 6.2.1

Bumps [natsort](https://github.com/SethMMorton/natsort) from 6.2.0 to 6.2.1.
- [Release notes](https://github.com/SethMMorton/natsort/releases)
- [Changelog](https://github.com/SethMMorton/natsort/blob/6.2.1/CHANGELOG.md)
- [Commits](https://github.com/SethMMorton/natsort/compare/6.2.0...6.2.1)

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

requirements.txt

@@ -13,7 +13,7 @@ google-cloud-dns==0.31.0
 ipaddress==1.0.23
 jmespath==0.9.4
 msrestazure==0.6.2
-natsort==6.2.0
+natsort==6.2.1
 ns1-python==0.13.0
 ovh==0.5.0
 pycountry-convert==0.7.2