Bump gunicorn from 20.0.4 to 20.1.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.0.4 to 20.1.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@20.0.4...20.1.0)

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

requirements.txt

@@ -8,7 +8,7 @@ responses>=0.12,<1.0
 requests>=2,<3
 whitenoise>=5.2,<6.0
 psycopg2-binary>=2.8,<2.9
-gunicorn==20.0.4
+gunicorn==20.1.0
 pyyaml==5.4.1
 uritemplate==3.0.1
 setuptools-scm==6.0.1