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/272fea9be6b978a2e4862314ce814e8428518b3b Support realpath in path module (phosek@chromium.org)

TBR=martiniss@chromium.org

Change-Id: I1620bbd3a3bcc6ae07dfabee27cedc3880383bcd
Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Reviewed-on: https://chromium-review.googlesource.com/451121
Reviewed-by: <recipe-roller@chromium.org>
Commit-Queue: <recipe-roller@chromium.org>

infra/config/recipes.cfg

@@ -5,5 +5,5 @@ deps {
   project_id: "recipe_engine"
   url: "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
   branch: "master"
-  revision: "ea723457b7a1d098594e68ad82f98964dc3d6cfa"
+  revision: "272fea9be6b978a2e4862314ce814e8428518b3b"
 }