Start test apks via adb command instead of calling the API directly.

Calling the API was failing with ActivityManager.START_ABORTED error
code. This CL fixes that issue by starting the test apk via abd shell
command.

Bug: 279403644
Test: atest UserLifecycleTests
Change-Id: I86d0c0f8ccd0f17833ad418c29be19489a2fdc9f