chore(deps): bump gunicorn from 21.2.0 to 23.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 21.2.0 to 23.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@21.2.0...23.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-version: 23.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -3,6 +3,6 @@ Flask-WTF==1.2.1
 Flask-Limiter==3.5.0
 Flask-CORS==4.0.2
 requests==2.31.0
-gunicorn==21.2.0
+gunicorn==23.0.0
 python-dotenv==1.0.0
 redis==5.0.1