Merge "Copy the out/soong/build_number.txt file into sdk snapshots" am: d72c8521 am: 1a8ec421

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2056132



Change-Id: Iaafeb8af3c198ee3125d2c7fffba7f89169b0dac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>