changeState method Null safety
override
    Handles state changes ensuring that the race statuses are updated
Implementation
@override
Future<void> changeState(String state,
    {Json? params, Object? data, bool resetData = false}) async {
  updateRaceStatus();
  await super.changeState(
    state,
    params: params,
    data: data,
    resetData: resetData,
  );
}