Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/1fa4e39..8a5b728

Add af and ur to common ICU (Trevor Perrier)
https://chromium.googlesource.com/chromium/deps/icu/+/8a5b728

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com,ftang@chromium.org

Change-Id: I313ca3e905c578ecaa6a55916f9011fb67516e6c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3526720
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79490}