[automerger skipped] Merge "DO NOT MERGE Apply upstream changes of TestUnicodeExtension [U CTS]" into android14-tests-dev am: a218e5e5c1 -s ours

am skip reason: Merged-In I228d5991c685a35989f7c0fccb6647afb938520e with SHA-1 b5c4a164d3 is already in history

Original change: https://android-review.googlesource.com/c/platform/libcore/+/2961022

Change-Id: Ia2fab29765ddc0e01a6a52f600c3cfe46dad2d7d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>