Merge "Use source stamp app targeting SDK version 29" into rvc-dev am:...

Merge "Use source stamp app targeting SDK version 29" into rvc-dev am: 26f5b8ad am: dab94a16 am: 426b1ade am: 995e45a2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11791620

Change-Id: I1f223319b19635eb11e72d8e5ab266189b34765f