pylint: fix warnings

Signed-off-by: Denys Fedoryshchenko <denys.f@collabora.com>

Author: nuclearcat

api/pubsub_mongo.py

@@ -311,6 +311,7 @@ def _eventhistory_to_cloudevent(self, event: Dict) -> str:
         ce = CloudEvent(attributes=attributes, data=event.get('data', {}))
         return to_json(ce).decode('utf-8')
 
+    # pylint: disable=too-many-arguments
     async def _get_missed_events(self, channel: str, after_seq_id: int, *,
                                  owner_filter: Optional[str] = None,
                                  promiscuous: bool = False,
@@ -392,6 +393,7 @@ async def subscribe(self, channel: str, user: str,
 
         return sub
 
+    # pylint: disable=too-many-arguments
     async def _setup_durable_subscription(
             self, sub_id: int, subscriber_id: str,
             *, channel: str, user: str, promiscuous: bool):