Roll recipe dependencies (trivial).

R=
BUG=
TBR=luqui@chromium.org

Review URL: https://codereview.chromium.org/1554093004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@298116 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: "e6cee89cfc85c0cbba909b8498685ddf849cffa8"
+  revision: "8cc81f5e4a4c19e0fab846028191e8640b4fc850"
 }