When stress testing compaction, also abort evacuation for 5% of the
pages somewhere in the middle of the page.

Bug: chromium:1359294, v8:12578
Change-Id: Ie2e9873660ea2c330f175607b443f536f5d3abd2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3876369
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83036}