Bump gunicorn from 21.2.0 to 22.0.0 in /frameworks/Python/panther

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

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

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

frameworks/Python/panther/requirements.txt

@@ -5,7 +5,7 @@ jinja2==3.1.2
 
 asyncpg==0.29.0
 
-gunicorn==21.2.0
+gunicorn==22.0.0
 uvicorn==0.24.0
 uvloop==0.19.0
 httptools==0.6.1