Bump gunicorn from 21.2.0 to 22.0.0

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

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

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

requirements.txt

@@ -6,7 +6,7 @@ Flask-Migrate==4.0.7
 Flask-Security-Too==4.1.6
 Flask-SQLAlchemy==3.1.1
 Flask-WTF==1.2.1
-gunicorn==21.2.0
+gunicorn==22.0.0
 mysql-connector-python==8.3.0
 pysam==0.22.0
 pytz==2024.1