Build icing against the "current" SDK for mainline compatibility. am: ac858b3f91 am: 560a0dde72 am: 1ab6167170 am: 6cba7ec888 am: 1a698115fe

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/icing/+/14804613

Change-Id: I5f628ed36d75635f71b72c5986f3b461df094bb0