deps: V8: cherry-pick 5681a6565828

Original commit message:

    [rab/gsab] Fix missing assignment in BackingStore::Reallocate

    See https://github.com/nodejs/node/pull/39945

    Bug: v8:11111
    Change-Id: I7271a907bf036c18a014b2a13ff5746db622456a
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3141581


Reviewed-by: Leszek Swirski <leszeks@chromium.org>
    Commit-Queue: Marja Hölttä <marja@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#76670}

Refs: https://github.com/v8/v8/commit/5681a65658285af1aa7eb28530199ceeaa430cfe

PR-URL: https://github.com/nodejs/node/pull/39945


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>