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.
recipe_engine:
  https://crrev.com/554e8878ac6395262dc3c90bbb8a100ee844f766 Ensure raw_io creates all parent directories of the backing_dir. (jbudorick@chromium.org)


TBR=iannucci@chromium.org

Change-Id: Ied57f76a3ab376f17d5ee63138ae6b342b3b1ee9
Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Reviewed-on: https://chromium-review.googlesource.com/485040
Reviewed-by: <recipe-roller@chromium.org>
Commit-Queue: <recipe-roller@chromium.org>

infra/config/recipes.cfg

@@ -15,7 +15,7 @@
   "deps": {
     "recipe_engine": {
       "branch": "master",
-      "revision": "6eba2e3ccb23e7a3b622d82f23aad776c09a270c",
+      "revision": "554e8878ac6395262dc3c90bbb8a100ee844f766",
       "url": "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
     }
   },