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/+/600141463e0dbd42112f32fe587c2a84e5b8b9c1
  6001414 (iannucci@chromium.org)
      Apply index.lock 'fix' within recipes.py.

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

TBR=iannucci@chromium.org

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I09c4e12932935cce11b324571dcedd25d034b067
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2277236Reviewed-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>