Merge "Reapply "snapshotctl: Add apply-update option"" into main am: 3aef00da3d

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2982153

Change-Id: Ia7d40f392e5587372452fee65e03ada30b19f8c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>