Update the auto roll detection in roll_merge_gerrit to use the Skia bot's email and message format. Change-Id: I72cc827d12afe3e5c18054a5e883b496d3aee3f6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5626026 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/main@{#94433}