Until setup and general API direction are clear no C++ types should be
GCed.

Bug: chromium:1056170
Change-Id: I9d51e57065b22f025898114d20887166ef756319
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3116256Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76480}