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).

Please review the expectation changes, and LGTM as normal. The recipe roller
will *NOT* CQ the change itself, so you must commit the change manually.

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

R=
BUG=
TBR=martiniss@chromium.org

Review URL: https://codereview.chromium.org/1852773002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@299641 0039d316-1c4b-4281-b951-d872f2087c98

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: "a9ee8a66483389db559ce87268a768af0c640551"
+  revision: "73e6fd038d0d51afb647c273557bde352ba01d6a"
 }