Merge "cargo_embargo: improve the empty test detection check" into main am: 4814e85532 am: b3e36dcf01

Original change: https://android-review.googlesource.com/c/platform/development/+/2806135

Change-Id: Id56be247a92424b7d0284313af67c31934506c48
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>