GitLab

Add a note about finding V8 regressions without doing a local build
and update the link used in the bug template (old link is dead).

Change-Id: Ica2be83ab833c03a71e25a307e2fb105455805e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1699243
Auto-Submit: Eric Stevenson <estevenson@chromium.org>
Reviewed-by: Mohamed Heikal <mheikal@chromium.org>
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#676626}