See https://github.com/WebAssembly/stringref/pull/32.

Bug: v8:12868
Change-Id: Ia804809b01eb06163c4477b3f06ac09e016b6277
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3747875Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andy Wingo <wingo@igalia.com>
Cr-Commit-Position: refs/heads/main@{#81572}