Roll Depot Tools from 5a0f43aebe00 to fa474e8c5e8e (1 revision)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/5a0f43aebe00..fa474e8c5e8e

2021-09-17 sokcevic@google.com Refactor gsutil and fix concurrecny issue on MacOS

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

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

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/main/autoroll/README.md

Bug: chromium:1249003
Tbr: sokcevic@google.com,ajp@google.com,apolito@google.com,gavinmak@google.com
Change-Id: I952ea97ac3785537ad5e6711316aff21a190aff4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3169392
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#922565}