feat: allow custom logger

[SatyaanM]

Before, any Logger passed in with configuration gets overwritten by RunnerLogger:

  return {
    ...configuration,
    logger: RunnerLogger,
    events,
  };

After, RunnerLogger is used by default but overwritten by any configuration passed in

return {
    logger: RunnerLogger,
    ...configuration,
    events,
};

[madeindjs]

Thanks, released as v0.8.0 and published on NPM