Bump pygithub from 2.9.0 to 2.9.1

Bumps [pygithub](https://github.com/pygithub/pygithub) from 2.9.0 to 2.9.1.
- [Release notes](https://github.com/pygithub/pygithub/releases)
- [Changelog](https://github.com/PyGithub/PyGithub/blob/main/doc/changes.rst)
- [Commits](PyGithub/PyGithub@v2.9.0...v2.9.1)

---
updated-dependencies:
- dependency-name: pygithub
  dependency-version: 2.9.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@ flask-wtf==1.2.2
 werkzeug==3.1.8
 bcrypt==5.0.0
 APScheduler==3.11.2
-PyGithub==2.9.0
+PyGithub==2.9.1
 gitpython==3.1.46
 python-dotenv==1.2.2
 requests==2.33.1