DO NOT MERGE Update VTS tag version to V13_r4 am: 2f29640215

Original change: https://android-review.googlesource.com/c/platform/test/vts/+/2470071

Change-Id: I56755b0724d9ae7bcd348e51e22141936062fc1a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>