chore(deps): bump django from 5.0.7 to 5.0.8 in /backend

Bumps [django](https://github.com/django/django) from 5.0.7 to 5.0.8.
- [Commits](django/django@5.0.7...5.0.8)

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

Signed-off-by: dependabot[bot] <support@github.com>

backend/requirements.txt

@@ -12,7 +12,7 @@ beautifulsoup4==4.12.3
     # via -r requirements.in
 dj-database-url==2.2.0
     # via -r requirements.in
-django==5.0.7
+django==5.0.8
     # via
     #   -r requirements.in
     #   dj-database-url