⬆️ Bump django from 3.2.19 to 3.2.20 in /server

Bumps [django](https://github.com/django/django) from 3.2.19 to 3.2.20.
- [Commits](django/django@3.2.19...3.2.20)

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

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

server/requirements.txt

@@ -2,7 +2,7 @@ asgiref==3.4.1
 asyncio==3.4.3
 celery==5.2.2
 dj-database-url==0.5.0
-Django==3.2.19
+Django==3.2.20
 djangorestframework==3.12.4
 google-api-python-client==2.33.0
 pymongo==3.12.0