11345 [Android] Write MINIMAL_SDK required to use PlatformViews to exception message (cla: yes)

11350 Firebase test for Platform Views on iOS (cla: yes)

11355 update sim script (cla: yes)

11356 Remove engine hash from pom filename (cla: yes)

11357 Rename first frame method and notify FlutterActivity when full drawn (#38714 #36796). (cla: yes)

11359 Dry up fixture comparison in embedder unit-tests. (cla: yes)

11360 build legacy web SDK (cla: yes)

11361 Include Java stack trace in method channel invocations (cla: yes)

11367 Make message loop task entry containers thread safe (cla: yes)