Roll SK Tool from 473c0ef7fb65 to 4ef22d867c8f

https://skia.googlesource.com/buildbot.git/+log/473c0ef7fb65..4ef22d867c8f

2021-05-20 lovisolo@google.com [gold] Port multi-zoom-sk to TypeScript.
2021-05-20 lovisolo@google.com Update BUILD files with Gazelle.
2021-05-20 rmistry@google.com Look for main branch to get list of trybots in cq_watcher
2021-05-20 rmistry@google.com Specify branch to update in androidingest
2021-05-20 rmistry@google.com Push to main branch of perf-buildid/android-master

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/sk-tool-skia
Please CC jcgregorio@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Tbr: jcgregorio@google.com
Change-Id: I05c0d8bbc2efc254138d76b79c5d14ed83605f8a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/410750
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
1 file changed