Update gradle to 6.6 final
Update gradle to 6.6 final

bugsnag/bugsnag-android-gradle-plugin,bugsnag/bugsnag-android-gradle-plugin,bugsnag/bugsnag-android-gradle-plugin,bugsnag/bugsnag-android-gradle-plugin,bugsnag/bugsnag-android-gradle-plugin,bugsnag/bugsnag-android-gradle-plugin