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/+log/86c55e698c80adc9d26af56e398081d8cb773464~..e039848b6795370d305f6dababc5af4047c15dab
  86c55e6 (bryner@google.com)
      Explicitly run python2 from recipes.py.
  e039848 (yiwzhang@google.com)
      recipe-proto: Roll proto imported from luci-go to latest

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

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

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ibccb38b58a2e77193c0f963f118067648d657253
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2774529
Bot-Commit: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>