Update django requirement from ==4.2.* to ==6.0.* in /server

Updates the requirements on [django](https://github.com/django/django) to permit the latest version.
- [Commits](django/django@4.2a1...6.0)

---
updated-dependencies:
- dependency-name: django
  dependency-version: '6.0'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

server/requirements.txt

@@ -5,7 +5,7 @@ beautifulsoup4==4.13.*
 celery==5.5.*
 channels==4.2.*
 channels_redis==4.2.*
-Django==4.2.*
+Django==6.0.*
 django-cors-headers==4.7.*
 django-decorator-include==3.3
 django-extensions==4.1