build(deps): bump gunicorn from 25.0.3 to 25.3.0 in /src

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 25.0.3 to 25.3.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](https://github.com/benoitc/gunicorn/compare/25.0.3...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>

src/requirements.txt

@@ -5,7 +5,7 @@ pyotp==2.9.0
 Flask==3.1.2
 flask-cors==6.0.2
 icmplib==3.0.4
-gunicorn==25.0.3
+gunicorn==25.3.0
 requests==2.32.5
 tcconfig==0.30.1
 sqlalchemy==2.0.46