build(deps): bump gunicorn from 20.1.0 to 23.0.0 in /QA/py

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.1.0 to 23.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@20.1.0...23.0.0)

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

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

Author: dependabot[bot]

QA/py/requirements.txt

@@ -32,7 +32,7 @@ httptools==0.2.0
 # does not exit. Seen with 0.15.0 as well.
 # Note: there was a reg. in 0.17.0 with file upload, not visible during UT. So, to test manually.
 uvicorn==0.17.4
-gunicorn==20.1.0
+gunicorn==23.0.0
 httpx==0.18.1
 lxml==4.6.3
 lxml-stubs==0.2.0