Pin django-stubs to work around an upstream bug

See: typeddjango/django-stubs#1724

Author: brianhelba

tox.ini

@@ -41,7 +41,7 @@ package = editable
 deps =
     {[testenv:test-django42]deps}
     boto3-stubs[s3]
-    django-stubs
+    django-stubs<4.2.5
     djangorestframework-stubs
     mypy
     types-requests