Merge "cargo_embargo: improve the empty test detection check" into main am: 4814e85532 am: 0e8cba0a6e

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

Change-Id: I4c20acf8eeeb118e7d836d6a0adde5370d8bc21a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>