dataconnect: emulator.sh: add a comment about how to use a custom data connect emulator binary#7150

dconeybe merged 1 commit intomainfirebase/firebase-android-sdk:mainfrom

dconeybe/dataconnect/EmulatorShCustomBinaryCommentfirebase/firebase-android-sdk:dconeybe/dataconnect/EmulatorShCustomBinaryCommentCopy head branch name to clipboard