chore(deps): bump django from 5.1.14 to 6.0

Bumps [django](https://github.com/django/django) from 5.1.14 to 6.0.
- [Commits](django/django@5.1.14...6.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -18,7 +18,7 @@ django_extensions==4.1
 django-slack==5.19.0
 django-watson==1.6.3
 django-prometheus==2.4.1
-Django==5.1.15
+Django==6.0
 django-single-session==0.2.0
 djangorestframework==3.16.1
 html2text==2025.4.15