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

@@ -3,7 +3,7 @@ Flask-Limiter==4.1.1
 Flask==3.1.3
 google-cloud-compute==1.43.0
 google-cloud-secret-manager==2.26.0
-gunicorn==25.1.0
+gunicorn==25.3.0
 PyJWT==2.11.0
 python-dotenv==1.2.1
 requests==2.32.5