.github: Bump actions/setup-python from 5.4.0 to 6.0.0
Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.4.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5.4.0...
e797f83bcb11b83ae66e0230d6156d7c80228e7c)
---
updated-dependencies:
- dependency-name: actions/setup-python
dependency-version: 6.0.0
dependency-type: direct:production
update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>