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.in

@@ -31,7 +31,7 @@ easy-thumbnails==2.8.5
 feedparser==6.0.11
 google-auth==2.25.2
 google-cloud-storage==2.14.0
-gunicorn==21.2.0
+gunicorn==22.0.0
 iso3166==2.1.1
 jsonfield==3.1.0
 libsass==0.22.0

requirements.txt

@@ -131,7 +131,7 @@ google-resumable-media==2.6.0
     # via google-cloud-storage
 googleapis-common-protos==1.56.2
     # via google-api-core
-gunicorn==21.2.0
+gunicorn==22.0.0
     # via -r requirements.in
 html5lib==1.1
     # via djangocms-text-ckeditor