[AW] Extend component updater histograms and update owners

Extend all component updater histograms (including some expired ones)
as they're still relevant. We're launching another component soon and
we'd still want to monitor component updater performance during their
launch. Also remove nator@ from the owners as she is no longer on the
team.

Fixed: 1328146, 1328148, 1317255
Change-Id: Ic8c341e0fa4d653e1b687b239fd2bb60001dc069
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3757775
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Auto-Submit: Hazem Ashmawy <hazems@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1024280}