Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls recipe
changes from upstream projects (recipe_engine) into this repository.

recipe_engine:
  https://crrev.com/6163c134a0320158e9c0778f9ee532a81d03e0ed (agable@chromium.org)
    Remove recipe engine autoroller config

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

TBR=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Icac69b599cc4f2fb905927a434287c6b4ba49c31
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/266375
Reviewed-by: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>

infra/config/recipes.cfg

@@ -14,12 +14,12 @@
   "deps": {
     "depot_tools": {
       "branch": "master",
-      "revision": "684096347b67b1663690c118785018258acd2e9b",
+      "revision": "9403c3fc39e8b9054a9d5e1481c9d318bd8dc02c",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {
       "branch": "master",
-      "revision": "d5f7fbd67a6fb31d0491b5ba3e7f4a46c6668a37",
+      "revision": "6163c134a0320158e9c0778f9ee532a81d03e0ed",
       "url": "https://chromium.googlesource.com/infra/luci/recipes-py.git"
     }
   },