Merge "Update Unicode emoji data to 15.1" into main am: 4f6825e21d am: c08703b1af

Original change: https://android-review.googlesource.com/c/platform/external/unicode/+/2824658

Change-Id: I7d81c3657a4755b8620c22807558a977e721782e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>