Bump vulture from 2.8 to 2.9 in /hack/check-python (#1479) (#1485)

Bumps [vulture](https://github.com/jendrikseipp/vulture) from 2.8 to 2.9.
- [Release notes](https://github.com/jendrikseipp/vulture/releases)
- [Changelog](https://github.com/jendrikseipp/vulture/blob/main/CHANGELOG.md)
- [Commits](jendrikseipp/vulture@v2.8...v2.9)

---
updated-dependencies:
- dependency-name: vulture
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: service-binding-operator-bot

hack/check-python/requirements.txt

@@ -1,6 +1,6 @@
 pydocstyle==6.3.0
 pyflakes==3.1.0
-vulture==2.8
+vulture==2.9
 radon==6.0.1
 flake8_polyfill==1.0.2
 PyYAML==6.0.1