Merge "fallback on older cow version" into main am: 4fc78150 am: 9af982c4

Original change: https://android-review.googlesource.com/c/platform/build/+/2982349



Change-Id: I5cea82a3842035e3d9f74c1e0e7036db40936a0f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>