gcp-dns v5.9.1 - Managed zone Labels control now correctly applies labels according to the template policy

Bug fixes

• Previously, GCP > DNS > Managed Zone > Labels control would fail when attempting to update labels on private DNS zones that were linked to a Service Directory namespace. This was caused by the control attempting to modify the serviceDirectoryConfig field, which is not allowed by the Google Cloud DNS API and resulted in an error. This issue has now been resolved.