Bump gevent from 25.8.2 to 25.9.1 (#2917)

Bumps [gevent](https://github.com/gevent/gevent) from 25.8.2 to 25.9.1.
- [Release notes](https://github.com/gevent/gevent/releases)
- [Changelog](https://github.com/gevent/gevent/blob/master/docs/changelog_pre.rst)
- [Commits](https://github.com/gevent/gevent/compare/25.8.2...25.9.1)

---
updated-dependencies:
- dependency-name: gevent
  dependency-version: 25.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pyproject.toml

@@ -12,7 +12,7 @@ python = "^3.13.2"
 ago = "~=0.1.0"
 beautifulsoup4 = "^4.13.5"
 blinker = "~=1.8"
-gevent = "==25.8.2"
+gevent = "==25.9.1"
 exceptiongroup = "==1.3.0"
 flask = "~=3.1"
 flask-basicauth = "~=0.2"