Smaller timeout for MongoStorage connection

By default serverSelectionTimeoutMS=30000. This is too much

aiogram/fsm/storage/mongo.py

@@ -39,7 +39,10 @@ class MongoStorage(BaseStorage):
 
     @classmethod
     def from_url(
-        cls, url: str, connection_kwargs: Optional[Dict[str, Any]] = None, **kwargs: Any
+        cls,
+        url: str,
+        connection_kwargs: Optional[Dict[str, Any]] = {"serverSelectionTimeoutMS": 2000},
+        **kwargs: Any,
     ) -> "MongoStorage":
         """
         Create an instance of :class:`MongoStorage` with specifying the connection string