Update build-tools to ab/8998930 am: 84f7b37ce6

Original change: https://android-review.googlesource.com/c/platform/prebuilts/build-tools/+/2199395

Change-Id: I3619f42b934224f1096fdcc7358e774ed82072e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>