DO NOT MERGE: Bump VTS version to 13_R5 am: 6bfdc800c5

Original change: https://android-review.googlesource.com/c/platform/test/vts/+/2541891

Change-Id: I4aae9f3a586f1c42c5129719fd8bf4cb14b3a242
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>