This is an automated CL created by the recipe roller. This CL rolls
recipe changes from upstream projects (recipe_engine) into this repository.

recipe_engine:
https://chromium.googlesource.com/infra/luci/recipes-py.git/+/6d51a052a45b041e4163a01f0b6f9035f4d07b2a
  6d51a05 (tikuta@chromium.org)
      [swarming] update client

More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug.

TBR=iannucci@chromium.org, tandrii@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ia3639a6a6b96cb121888fbb00512eb956ac245ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2557437Reviewed-by: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>