Bump gunicorn from 22.0.0 to 23.0.0 in /api_server (#152)

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 22.0.0 to 23.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@22.0.0...23.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

api_server/requirements.txt

@@ -3,7 +3,7 @@ djangorestframework==3.14.0
 psycopg2-binary==2.9.9
 tzdata==2024.1
 djangorestframework-simplejwt==5.3.1
-gunicorn==22.0.0
+gunicorn==23.0.0
 django-health-check==3.18.3
 whitenoise==6.7.0
 drf-spectacular==0.28.0