Bump greenlet from 3.0.3 to 3.1.1

Bumps [greenlet](https://github.com/python-greenlet/greenlet) from 3.0.3 to 3.1.1.
- [Changelog](https://github.com/python-greenlet/greenlet/blob/master/CHANGES.rst)
- [Commits](python-greenlet/greenlet@3.0.3...3.1.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements/production.txt

@@ -2,7 +2,7 @@
 certifi==2021.10.8
 django-redis-cache==3.0.1
 gevent==22.10.2
-greenlet==3.0.3
+greenlet==3.1.1
 raven==6.10.0
 redis==3.5.3
 gunicorn==20.1.0