Fix type error that made its way onto develop (#13098)

* Fix type error introduced accidentally by #13045

* Newsfile

Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>

changelog.d/13098.feature

@@ -0,0 +1 @@
+Speed up fetching of device list changes in `/sync` and `/keys/changes`.

synapse/storage/databases/main/devices.py

@@ -1245,8 +1245,8 @@ async def get_device_list_changes_in_rooms(
 
         def _get_device_list_changes_in_rooms_txn(
             txn: LoggingTransaction,
-            clause,
-            args,
+            clause: str,
+            args: List[Any],
         ) -> Set[str]:
             txn.execute(sql.format(clause=clause), args)
             return {user_id for user_id, in txn}