* commit '0d4f614fd':
Refactor `_get_e2e_device_keys_for_federation_query_txn` (#8225)
Add experimental support for sharding event persister. (#8170)
Add /user/{user_id}/shared_rooms/ api (#7785)
Do not try to store invalid data in the stats table (#8226)
Convert the main methods run by the reactor to async. (#8213)