Bump gunicorn from 25.1.0 to 25.3.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 25.1.0 to 25.3.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@25.1.0...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]

requirements.txt

@@ -5,7 +5,7 @@ Markdown==3.10.2
 inflection==0.5.1
 psycopg[binary]==3.3.3
 dj-database-url==3.1.2
-gunicorn==25.1.0
+gunicorn==25.3.0
 whitenoise==6.12.0
 PyYAML==6.0.3
 drf-spectacular==0.29.0