chore(deps): bump python-socketio from 5.11.2 to 5.11.3 in /backend

Bumps [python-socketio](https://github.com/miguelgrinberg/python-socketio) from 5.11.2 to 5.11.3.
- [Release notes](https://github.com/miguelgrinberg/python-socketio/releases)
- [Changelog](https://github.com/miguelgrinberg/python-socketio/blob/main/CHANGES.md)
- [Commits](https://github.com/miguelgrinberg/python-socketio/compare/v5.11.2...v5.11.3

)

---
updated-dependencies:
- dependency-name: python-socketio
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

backend/requirements.txt

@@ -6,7 +6,7 @@ python-multipart==0.0.9
 Flask==3.0.3
 Flask-Cors==4.0.1
 
-python-socketio==5.11.2
+python-socketio==5.11.3
 python-jose==3.3.0
 passlib[bcrypt]==1.7.4