update cron events

sql/insertCiviruleEvent.sql

@@ -86,4 +86,4 @@ VALUES
   ('deleted_tag', 'Tag is deleted', 'Tag', 'delete', null, CURDATE(), 1);
 
 INSERT INTO civirule_event (name, label, object_name, op, cron, class_name, created_date, created_user_id)
-VALUES  ('birthday', 'Individual has birthday', null, null, 1, null,  CURDATE(), 1);
+VALUES  ('birthday', 'Individual has birthday', null, null, 1, 'CRM_CivirulesCronEvent_Birthday',  CURDATE(), 1);