Add GitHubUtils class am: 856e2bdbd8 am: d8aaeeb1d7 am: 2110e08c70 am: f858fd2b3a am: 0d8d364692 am: c28040d5f2 Original change: https://googleplex-android-review.googlesource.com/c/platform/platform_testing/+/26074109 Change-Id: I5d810ceea6da62e73bfdf6349771761ba23932af Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>