removed the SUnit function from the mixin

plugins/module_utils/module.py

@@ -345,7 +345,7 @@ def installable(_class: Type[SystemdUnitModule]):
     return _class
 
 
-class SystemdReloadMixin(SystemdUnitModule):
+class SystemdReloadMixin:
     def post(self):
         if not self.changed:
             return