Update 'plugins/edirectory_monitor/rulesets/special_agent.py'

corrected a typo

plugins/edirectory_monitor/rulesets/special_agent.py

@@ -26,7 +26,7 @@ def _parameter_form() -> Dictionary:
                 ),
             ),
             "user": DictElement(
-                required=True.
+                required=True,
                 parameter_form=String(
                     title=Title("DN of Username to use for Monitoring"),
                 ),