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Also add myself as owner for the deps file for that script and fixes
the email address used for the common wpt scripts.

Bug: None
Change-Id: I72eb3e2a6ad52287ac83111d1f456c40df6ac572
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2644380Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Rakib Hasan <rmhasan@google.com>
Cr-Commit-Position: refs/heads/master@{#846360}