This fixes 'fetch v8' on Arm Macs.

Bug: chromium:1295840
Change-Id: Ifa7a07eef508c0e0203de8ea8d54ddcd31815fe8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3494442
Auto-Submit: David Benjamin <davidben@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79351}