Allow robot accounts to CQ+2. Bug: 431160879 Change-Id: Ic448cbe0138a335d162c87fc724ccef48b98ce34 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/400320 Auto-Submit: Andrew Mitchell <mitchella@google.com> Commit-Queue: Andrew Mitchell <mitchella@google.com> Reviewed-by: Andrew Mitchell <mitchella@google.com>