Merge "Use source stamp app targeting SDK version 29" into rvc-dev am: 26f5b8adc6 am: 603033f4ab

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

Change-Id: I1916c2b1602e725631b0e2831682516e2e4b5e04