Bump VTS version to 13 am: ec1cf7588c am: 153ac5978c

Original change: https://googleplex-android-review.googlesource.com/c/platform/test/vts/+/17942987

Change-Id: I5a98ba60c4485ce7ec1416ada019ad0b601c8750
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>