build(test/features): terminate test run if stop hangs
build(test/features): terminate test run if stop hangs

If a test fails, there's a chance that the connection between the
automation and the running app has terminated, so stop() will hang. This
change forces the test run to terminate with an error for that case.
bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js,bugsnag/bugsnag-js