Bump gunicorn from 24.1.1 to 25.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 24.1.1 to 25.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@24.1.1...25.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-version: 25.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -67,7 +67,7 @@ django-stagingcontext==0.1.0
 django-ga-context==0.1.0
 django-impersonate==1.9.5
 django-markwhat==2025.5.31
-gunicorn==24.1.1
+gunicorn==25.0.0
 django-flatblocks==1.0.0
 
 djangorestframework==3.16.0