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

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

Change-Id: I1b96a4aab7d5942a01634fd8b1543e1ab5106110
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>