Merge "update Cloud Test Lab guide for Firebase / Studio 2.2. Originally written by Aaron Carey. bug: 30400568" into nyc-dev am: bf5f1674c7 am: 50c4b9269c am: 6c3f26e5fe
am: f946b7f643

Change-Id: I04573b8b39808193615aa378fc123d83d9976a87