Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls recipe
changes from upstream projects (e.g. depot_tools) into downstream projects
(e.g. tools/build).


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

recipe_engine:
  https://crrev.com/928cf06d73113b2b349aaeb0b13d94e30ea3f0e1 [tests] add custom assertion test for whitelist_steps. (iannucci@chromium.org)
  https://crrev.com/22e413ad35481ecd49d232620e7794ce6f544958 [package.proto] add canonical_base_url field. (iannucci@chromium.org)

TBR=martiniss@chromium.org

Change-Id: I6c369caa4e5d7e68664d1abebb2bde66ab1a9d68
Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Reviewed-on: https://chromium-review.googlesource.com/451559
Reviewed-by: <recipe-roller@chromium.org>
Commit-Queue: <recipe-roller@chromium.org>

infra/config/recipes.cfg

 api_version: 1
 project_id: "depot_tools"
 recipes_path: ""
+canonical_base_url: ""
 deps {
   project_id: "recipe_engine"
   url: "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
   branch: "master"
-  revision: "272fea9be6b978a2e4862314ce814e8428518b3b"
+  revision: "22e413ad35481ecd49d232620e7794ce6f544958"
 }