Fix call to old method name

synapse/handlers/directory.py

@@ -457,8 +457,8 @@ class DirectoryHandler(BaseHandler):
 
             # Check if publishing is blocked by a third party module
             allowed_by_third_party_rules = await (
-                self.third_party_event_rules.check_room_can_be_added_to_public_rooms_directory(
-                    room_id
+                self.third_party_event_rules.check_visibility_can_be_modified(
+                    room_id, visibility
                 )
             )
             if not allowed_by_third_party_rules: