Update build-tools to ab/6629626 am: f612a0670c am: e1a34a3f07 am: 6c2c6a1b15 am: 3e8bbc432d

Original change: https://android-review.googlesource.com/c/platform/prebuilts/build-tools/+/1350708

Change-Id: I3f51d15d2d64eee454d026e1632e5d94c7221bc1