chore(deps): update django requirement from ~=5.2 to >=5.2,<7.0

Updates the requirements on [django](https://github.com/django/django) to permit the latest version.
- [Commits](django/django@5.2...6.0.6)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 6.0.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -10,7 +10,7 @@ readme = "README.md"
 requires-python = "~=3.13.2"
 
 dependencies = [
-    "Django~=5.2",
+    "Django>=5.2,<7.0",
     "celery[redis]~=5.4.0",
     "flower", # celery-dashboard
     "django-celery-beat",