Bump gunicorn from 20.1.0 to 22.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.1.0 to 22.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@20.1.0...22.0.0)

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

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

Author: dependabot[bot]

poetry.lock

@@ -28,7 +28,7 @@ hackman-manage = 'hackman.manage:main'
 python = "^3.9"
 Django = "^4.1.13"
 Jinja2 = "^3.1.3"
-gunicorn = "^20.1.0"
+gunicorn = "^22.0.0"
 django-redis = "^5.2.0"
 IPy = "^1.01"
 django-cors-headers = "^3.13.0"