fix deprecation

app/doorboy-proxy.py

@@ -29,7 +29,7 @@ assert len(DOORBOY_SECRET_WORKSHOP) >= 10
 
 
 @app.listener("before_server_start")
-async def setup_db(app, loop):
+async def setup_db(app):
     # TODO: find cleaner way to do this, for more see
     # https://github.com/sanic-org/sanic/issues/919
     app.ctx.db = AsyncIOMotorClient(MONGO_URI).get_default_database()

app/slack.py

@@ -46,7 +46,7 @@ def approvedStr(approved: bool) -> str:
 
 # consumes SLACK_DOORLOG_CALLBACK and app.ctx.db
 @slack_app.listener("after_server_start")
-async def slack_log_fwd(app, loop):
+async def slack_log_fwd(app):
     pipeline = [
         {
             "$match": {