Bump django from 3.2.23 to 3.2.25 in /backend (#2852)

Bumps [django](https://github.com/django/django) from 3.2.23 to 3.2.25.
- [Commits](django/django@3.2.23...3.2.25)

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

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backend/requirements.txt

@@ -10,7 +10,7 @@ coreapi==2.3.3
 coreschema==0.0.4
 coverage==6.5.0
 cryptography==39.0.1
-Django==3.2.23
+Django==3.2.25
 django-celery-beat==1.4.0
 django-cors-headers==3.10.1
 django-debug-toolbar==3.2.4