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/efe902b20b6ae0d367b354bdaa2e10c19349f880 Deploy git 2.21.0 to prod win depot_tools users (tikuta@chromium.org)
  https://crrev.com/b542cca266972d6f78afe52d9a9a1a56a3f90d7d git_test_utils: Copy os.environ in get_git_commit_env() (raphael.kubo.da.costa@intel.com)
recipe_engine:
  https://crrev.com/c5f4654c010e356e4a9c21311f44ffa8589aa00a Add read/write_json methods to file module. (adrexler@google.com)


TBR=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I415942c5a149be070ea5db67854d14ee52485018
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201958
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": "24b5f9087ff65463761cdb064ffb564e76e273a2",
+      "revision": "28ac5189b38f82f1e5d97f4ac3725f5567d2e0ec",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {
       "branch": "master",
-      "revision": "b2fd216f19285779af34b1d2df68b5ca9899ec1d",
+      "revision": "c5f4654c010e356e4a9c21311f44ffa8589aa00a",
       "url": "https://chromium.googlesource.com/infra/luci/recipes-py.git"
     }
   },