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.
depot_tools:
  https://crrev.com/5ae86d2021277b545889959125e778820849cf15 Update canned PRESUBMIT checks to report that TBR does not apply to OWNERS. (jbroman@chromium.org)
  https://crrev.com/276da0b4d90aad69aa0adcf3e6a792b5e364c1ee git cl: Do not set WIP when using no_squash. (jmadill@chromium.org)
  https://crrev.com/3806b7fbd0ea6704d2c35d1eb64a2a505e29ca53 bot_update: Fetch references to be synced. (ehmaldonado@chromium.org)


TBR=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I651e8c1af3cb363b403cb921c1945028d1ebef4c
Reviewed-on: https://skia-review.googlesource.com/126827
Reviewed-by: Recipe Roller <recipe-roller@chromium.org>
Commit-Queue: Recipe Roller <recipe-roller@chromium.org>

infra/config/recipes.cfg

@@ -14,7 +14,7 @@
   "deps": {
     "depot_tools": {
       "branch": "master",
-      "revision": "6f3c1c82d48ba8c9cee1d15d1406f47973aa88fa",
+      "revision": "3806b7fbd0ea6704d2c35d1eb64a2a505e29ca53",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {