[stable queens/pike] Use server_not_blacklisted condition

If the 'actions' is set to [] for UpdateDeployment, doing get_attr
would throw an error, as the deployment are not created in heat and
resource_id would be None.  Though this should be fixed in heat,
it would be good to get attributes from UpdateDeployment conditionally.

This minor update code has been removed since stable/rocky with
change I6c5eafe76eb53bc38d100a9ba132dd8fe6dd2d5f.

Change-Id: I86fc82e604fbdee2881c4ef0ad6602da412a7ee6
Closes-Bug: #1830837

puppet/role.role.j2.yaml

@@ -508,7 +508,11 @@ resources:
       config: {get_resource: {{server_resource_name}}Config}
       server: {get_resource: {{server_resource_name}}}
       input_values:
-        enable_package_upgrade: {get_attr: [UpdateDeployment, update_managed_packages]}
+        enable_package_upgrade:
+          if:
+            - server_not_blacklisted
+            - {get_attr: [UpdateDeployment, update_managed_packages]}
+            - false
       actions:
         if:
           - server_not_blacklisted