Seems to have been broken by 5ea3536: [AGP 9] Update Warn Version to AGP 9+

See https://flutter-dashboard.appspot.com/#/build?repo=flutter&taskFilter=flutter_engine_group_performance&branch=master

Example failure: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_mokey%20flutter_engine_group_performance/6266/overview