0x65 is unavailable after
https://github.com/WebAssembly/gc/pull/295/files.

Bug: v8:12868
Change-Id: I8bdffb279c7e7cf72242c1565cf3401e5fa3f4d5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3717984
Commit-Queue: Andy Wingo <wingo@igalia.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81296}