Roll recipe dependencies (nontrivial).

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).


Please review the expectation changes, and LGTM+CQ.


More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug.
depot_tools:
  https://crrev.com/b594247e39a48445ccfc7e70678f97e1de451057 Reland "depot_tools: Run recipe scripts using vpython." (ehmaldonado@chromium.org)


R=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ie378193914415e50da479e1229afe85f66dbaba3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/249292
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Ravi Mistry <rmistry@google.com>

infra/bots/recipes/compute_buildstats.expected/trybot.json

@@ -29,7 +29,7 @@
   },
   {
     "cmd": [
-      "python",
+      "vpython",
       "-u",
       "RECIPE_REPO[depot_tools]/gerrit_client.py",
       "changes",

infra/config/recipes.cfg

@@ -14,7 +14,7 @@
   "deps": {
     "depot_tools": {
       "branch": "master",
-      "revision": "989bc351863dd6cbb7e645a027a3c5e04104e44f",
+      "revision": "b594247e39a48445ccfc7e70678f97e1de451057",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {