Enabled embedded_launcher: true on python tests am: c52ba3c26b am: 9b1e0ef678

Original change: https://android-review.googlesource.com/c/platform/tools/treble/+/3028769

Change-Id: I187fb715cdc7e121775a4abb7ab11db9349c15a6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>