Merge "Atest: use prebuilt py3-cmd as default py interpreter" am: 32fc40fd2c am: ab5f12402a am: fc25158a38

Original change: https://android-review.googlesource.com/c/platform/prebuilts/asuite/+/1992730

Change-Id: Id3bbf20a62bf97f92eedc71e51976d50a4cf7467