🐛 [firebase_messaging] e2e test "firebase_messaging subscribeFromTopic() successfully unsubscribes from topic" times out with a likelihood of 98% on android

[nilsreichardt]

https://github.com/firebase/flutterfire/actions/runs/3165811795/jobs/5155119171

05:08 +193 ~15 -1: FlutterFire firebase_messaging subscribeToTopic() successfully subscribes from topic [E]                                                                                            
  TimeoutException after 0:00:30.000000: Test timed out after 30 seconds. See https://pub.dev/packages/test#timeouts
  dart:isolate  _RawReceivePortImpl._handleMessage
  

To run this test again: /Users/runner/work/flutterfire/flutterfire/_flutter/bin/cache/dart-sdk/bin/dart test /Users/runner/work/flutterfire/flutterfire/tests/integration_test/e2e_test.dart -p vm --plain-name 'FlutterFire firebase_messaging subscribeToTopic() successfully subscribes from topic'

Out of 50 runs, one run has passed: https://github.com/firebase/flutterfire/actions/runs/3165811795/jobs/5155119036