Abort evacuation for ~10% of evacuation candidates during stress
testing. This should make aborting of evacuation more frequently and
uncover bugs sooner.

Bug: chromium:1359294, v8:12578
Change-Id: I2fb2124b10456ea71da12df71ef92cf2c3d89c03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3878173
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83023}