Roll recipe dependencies (trivial).

infra/config/recipes.cfg

Index: infra/config/recipes.cfg
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index 278d37dc3aeaefb7008fedfe9d3327c18c7f0959..23994b772e0180236b559a3b001de56f49204cb2 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -5,17 +5,17 @@ deps {
   project_id: "build"
   url: "https://chromium.googlesource.com/chromium/tools/build.git"
   branch: "master"
-  revision: "b8bb5bdccf448b62d492d58c23441b69d1e43026"
+  revision: "84ea9f11905aeb0d78be8c92c3f54149dfb4382a"
 }
 deps {
   project_id: "depot_tools"
   url: "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
   branch: "master"
-  revision: "33a46ffb3f0e7f54f55d269795b52d34b2f1be61"
+  revision: "37ac639b5795bbfdaed0e000d8d32211d12f0fe2"
 }
 deps {
   project_id: "recipe_engine"
   url: "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
   branch: "master"
-  revision: "6769b4ea18de83ed9676b90a0893417a47be62cc"
+  revision: "772978c9b350224f62085c258408a02dcd97986c"
 }