Bump gunicorn from 25.2.0 to 25.3.0 in /django/django-blog

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 25.2.0 to 25.3.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@25.2.0...25.3.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-version: 25.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

django/django-blog/requirements.txt

@@ -1,3 +1,3 @@
 Django==6.0.4
-gunicorn==25.2.0
+gunicorn==25.3.0
 whitenoise==6.12.0