chore(deps): update dependency django-stubs to v6

Author: renovate[bot]

pyproject.toml

@@ -64,7 +64,7 @@ types = [
   "boto3-stubs==1.42.69",
   "celery-types==0.26.0",
   "django-stubs-ext==6.0.0",
-  "django-stubs[compatible-mypy]==5.2.9",
+  "django-stubs[compatible-mypy]==6.0.0",
   "djangorestframework-stubs==3.16.8",
   "mypy==1.19.1",
   "PyGObject-stubs==2.16.0",