Bump gevent from 21.8.0 to 21.12.0 (#1378)
Bump gevent from 21.8.0 to 21.12.0 (#1378)

Bumps [gevent](https://github.com/gevent/gevent) from 21.8.0 to 21.12.0.
- [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/21.8.0...21.12.0)

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

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Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
KlubJagiellonski/pola-backend,KlubJagiellonski/pola-backend,KlubJagiellonski/pola-backend,KlubJagiellonski/pola-backend