Convert additional databases to async/await part 2 (#8200)

changelog.d/8200.misc

synapse/events/builder.py

synapse/handlers/message.py

synapse/handlers/room_member.py

synapse/storage/databases/main/client_ips.py

synapse/storage/databases/main/directory.py

synapse/storage/databases/main/filtering.py

synapse/storage/databases/main/openid.py

synapse/storage/databases/main/profile.py

synapse/storage/databases/main/push_rule.py

synapse/storage/databases/main/room.py

synapse/storage/databases/main/signatures.py

synapse/storage/databases/main/ui_auth.py

synapse/storage/databases/main/user_erasure_store.py

tests/test_utils/event_injection.py