dataconnect: fix two flaky tests due to their failure to wait for FirebaseAuth to be initialized#6835

dconeybe merged 4 commits intomainfirebase/firebase-android-sdk:mainfrom

dconeybe/dataconnect/QueryShouldRetryOnUnauthenticatedFlakyTestFixfirebase/firebase-android-sdk:dconeybe/dataconnect/QueryShouldRetryOnUnauthenticatedFlakyTestFixCopy head branch name to clipboard