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

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

Change-Id: I93edc92b92faafad31727a43cd614295d2856902
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>