This is a reland of c99147c6

Original change's description:
> cppgc, heap: Don't eagerly allocate worklist segments
>
> Bug: chromium:1056170
> Change-Id: I75a6b5f52bfe8dd71abc086e5d1e060759ad7fc0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2391254
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69778}

Bug: chromium:1056170
Change-Id: I4633da065976a6b2710d2f23b946fd2af0e65c83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2401425Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69806}