Fix idempotence in rabbitmq_plugin (#52166)

* Fix idempotence in rabbitmq_plugin

* Add changelog fragment

changelogs/fragments/52166-fix_rabbitmq_plugin_idempotence.yml

@@ -0,0 +1,3 @@
+bugfixes:
+  - Fix rabbitmq_plugin idempotence due to information message in new version of rabbitmq
+    (https://github.com/ansible/ansible/pull/52166)

lib/ansible/modules/messaging/rabbitmq/rabbitmq_plugin.py

@@ -154,6 +154,8 @@ def main():
     if state == 'enabled':
         if not new_only:
             for plugin in enabled_plugins:
+                if " " in plugin:
+                    continue
                 if plugin not in names:
                     rabbitmq_plugins.disable(plugin)
                     disabled.append(plugin)