Drive-by: fix TSAN issue.

Bug: v8:11880
Change-Id: I8a31391c6a1855a20a243eb740e4e3e1223ecbbf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3333930Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78360}