Bump python-gitlab from 4.4.0 to 5.0.0

Bumps [python-gitlab](https://github.com/python-gitlab/python-gitlab) from 4.4.0 to 5.0.0.
- [Release notes](https://github.com/python-gitlab/python-gitlab/releases)
- [Changelog](https://github.com/python-gitlab/python-gitlab/blob/main/CHANGELOG.md)
- [Commits](python-gitlab/python-gitlab@v4.4.0...v5.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -1,6 +1,6 @@
 docopt==0.6.2
 pyjq==2.6.0
 ruamel.yaml==0.18.5
-python-gitlab==4.4.0
+python-gitlab==5.0.0
 verboselogs==1.7
 envsubst==0.1.5