Bump kubernetes from 29.0.0 to 30.1.0 in /maintenance

Bumps [kubernetes](https://github.com/kubernetes-client/python) from 29.0.0 to 30.1.0.
- [Release notes](https://github.com/kubernetes-client/python/releases)
- [Changelog](https://github.com/kubernetes-client/python/blob/master/CHANGELOG.md)
- [Commits](kubernetes-client/python@v29.0.0...v30.1.0)

---
updated-dependencies:
- dependency-name: kubernetes
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

maintenance/requirements.txt

@@ -24,7 +24,7 @@ humanfriendly==10.0
     # via -r requirements.in
 idna==3.7
     # via requests
-kubernetes==29.0.0
+kubernetes==30.1.0
     # via -r requirements.in
 oauthlib==3.2.2
     # via