Bump django from 4.2.11 to 4.2.14 in /backend

Bumps [django](https://github.com/django/django) from 4.2.11 to 4.2.14.
- [Commits](django/django@4.2.11...4.2.14)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

backend/requirements.txt

@@ -75,7 +75,7 @@ defusedxml==0.7.1
     #   python3-openid
 dj-rest-auth[with-social,with_social]==4.0.1
     # via -r requirements.in
-django==4.2.11
+django==4.2.14
     # via
     #   -r requirements.in
     #   dj-rest-auth