Merge "Make `tests` configuration option optional." into main am: e64a580e9f am: fe3997ee8c

Original change: https://android-review.googlesource.com/c/platform/development/+/2710054

Change-Id: If00a59c0c022af05df0c27f2d4491ecad0fb59a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>