chore(deps): update dependency djangorestframework-stubs to v3.16.8

Author: renovate[bot]

pyproject.toml

@@ -65,7 +65,7 @@ types = [
   "celery-types==0.24.0",
   "django-stubs-ext==5.2.9",
   "django-stubs[compatible-mypy]==5.2.9",
-  "djangorestframework-stubs==3.16.7",
+  "djangorestframework-stubs==3.16.8",
   "mypy==1.19.1",
   "PyGObject-stubs==2.16.0",
   "types-dateparser==1.2.2.20250809",