Bump gunicorn from 21.2.0 to 22.0.0 (#143)

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 21.2.0 to 22.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@21.2.0...22.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,6 +1,6 @@
 Django==5.0.3
 dj-database-url==2.1.0
-gunicorn==21.2.0
+gunicorn==22.0.0
 psycopg2-binary==2.9.9
 wheel==0.38.1
 whitenoise==6.6.0