message: test: Fix serializer test
diff: @@ -67,7 +67,7 @@ fn test_serialized_error_relay() {
  let helper_clone = helper.clone();
  async_manager::spawn(async move {
  assert!(matches!(
  - helper_clone.get_next_client_message().await,
  + helper_clone.next_client_message().await,
  ButtplugClientMessage::StartScanning(..)
  ));
  let mut error_msg = ButtplugServerMessage::Error(messages::Error::from(ButtplugError::from(
  