Enable new_robolectric am: 8b8225985e

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/tools/+/20642787

Change-Id: I9a9b7e43f84e8a75470e91bef45f47463a7a99a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>