AAP-51883 Fix unsafe assumption about org content type (ansible#814)

This fixes a server error

This is due to, specifically, the registration of the `Team` model in
galaxy_ng with no parent model.


https://github.com/ansible/galaxy_ng/blob/5fce949deb374e1755029f7d9a5a6d109d031e69/galaxy_ng/app/models/__init__.py#L50-L59

Knowing that the parent model is null, you can read the traceback in a
way that makes sense. The variable `team_parent_model` gets a value of
`None`, which is 100% unexpected.

At the end, `model` was _intended_ to be passed, but it has a value of
`None`, which the method interprets as not being provided.

Author: AlanCoding

ansible_base/rbac/permission_registry.py

@@ -186,8 +186,13 @@ def content_type_model(self):
 
     @cached_property
     def org_ct_id(self):
-        team_parent_model = self.get_parent_model(self.team_model)
-        return self.content_type_model.objects.get_for_model(team_parent_model).id
+        # This should be safe to import at top of file because it is ansible_base.lib
+        # but it is not because of issue:
+        # https://github.com/ansible/django-ansible-base/issues/443
+        from ansible_base.lib.utils.auth import get_organization_model
+
+        org_model = get_organization_model()
+        return self.content_type_model.objects.get_for_model(org_model).id
 
     @property
     def permission_qs(self):