Remove support for python 3.8 (#17908)

### Pull Request Checklist

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The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
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* [X] [Code
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[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/synapse/storage/databases/main/state.py b/synapse/storage/databases/main/state.py

index 60312d770d..42b3638e1c 100644
--- a/synapse/storage/databases/main/state.py
+++ b/synapse/storage/databases/main/state.py
@@ -681,7 +681,9 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
         context: EventContext,
     ) -> None:
         """Update the state group for a partial state event"""
-        async with self._un_partial_stated_events_stream_id_gen.get_next() as un_partial_state_event_stream_id:
+        async with (
+            self._un_partial_stated_events_stream_id_gen.get_next() as un_partial_state_event_stream_id
+        ):
             await self.db_pool.runInteraction(
                 "update_state_for_partial_state_event",
                 self._update_state_for_partial_state_event_txn,