Merge "Update test: true to mode: "test" in java_aconfig_library" into main am: 5682b4bf02

Original change: https://android-review.googlesource.com/c/platform/development/+/2825592

Change-Id: I15f3f9c554b9af7a341ae22dfa941a5982c44b2d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>