Temporarily made metadata field not updatable to prove that only thes…

…e changes are required to make the tests pass

mmv1/products/notebooks/Instance.yaml

@@ -81,7 +81,7 @@ examples:
       service_account: :SERVICE_ACCT
 custom_code: !ruby/object:Provider::Terraform::CustomCode
   constants: templates/terraform/constants/notebooks_instance.go
-  update_encoder: templates/terraform/update_encoder/notebooks_instance.go
+  # update_encoder: templates/terraform/update_encoder/notebooks_instance.go
 parameters:
   - !ruby/object:Api::Type::ResourceRef
     name: 'location'
@@ -366,8 +366,8 @@ properties:
     # This was added as part of https://github.com/GoogleCloudPlatform/magic-modules/pull/3761 to
     # avoid detecting drift, since this field is partially server-managed.
     ignore_read: true
-    update_verb: :PATCH
-    update_url: 'projects/{{project}}/locations/{{location}}/instances/{{name}}:updateMetadataItems'
+    # update_verb: :PATCH
+    # update_url: 'projects/{{project}}/locations/{{location}}/instances/{{name}}:updateMetadataItems'
   - !ruby/object:Api::Type::Time
     name: 'createTime'
     description: 'Instance creation time'