Between the loop entry and the Dequeue call, another
thread might exhaust the queue itens and the Dequeue
call will return false without setting the job.

Bug: chromium:1272009
Change-Id: Ia254d97de36395676f069c100f46747b41483783
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3300130
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78084}