Roll recipe dependencies (trivial).

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

build:
  https://crrev.com/d21a35b7ddbcd389fc14dcb581eda8c130403945 (machenbach@chromium.org)
    [V8] Enable setting custom gclient variables

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

TBR=athom@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I9f86e1c67c0d134a579756b40e171d48926b819b
Reviewed-on: https://dart-review.googlesource.com/c/recipes/+/157780
Reviewed-by: Dart CI <dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com>
Commit-Queue: Dart CI <dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com>
diff --git a/README.recipes.md b/README.recipes.md
index 1d72333..03b595a 100644
--- a/README.recipes.md
+++ b/README.recipes.md
@@ -211,7 +211,7 @@
 
 &mdash; **def [RunSteps](/recipes/roller/lkgr.py#33)(api, properties):**
 
-[build/recipe_modules/goma]: https://chromium.googlesource.com/chromium/tools/build.git/+/bcda5c6e6eca19891cf272a9479c1c27ea3b8c37/scripts/slave/README.recipes.md#recipe_modules-goma
+[build/recipe_modules/goma]: https://chromium.googlesource.com/chromium/tools/build.git/+/d21a35b7ddbcd389fc14dcb581eda8c130403945/scripts/slave/README.recipes.md#recipe_modules-goma
 [depot_tools/recipe_modules/bot_update]: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/8351dc1fb7c4eb1858096c51ffe3f45754877cb0/recipes/README.recipes.md#recipe_modules-bot_update
 [depot_tools/recipe_modules/depot_tools]: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/8351dc1fb7c4eb1858096c51ffe3f45754877cb0/recipes/README.recipes.md#recipe_modules-depot_tools
 [depot_tools/recipe_modules/gclient]: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/8351dc1fb7c4eb1858096c51ffe3f45754877cb0/recipes/README.recipes.md#recipe_modules-gclient
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index 4c07a10..94687f9 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -21,7 +21,7 @@
   "deps": {
     "build": {
       "branch": "refs/heads/master",
-      "revision": "bcda5c6e6eca19891cf272a9479c1c27ea3b8c37",
+      "revision": "d21a35b7ddbcd389fc14dcb581eda8c130403945",
       "url": "https://chromium.googlesource.com/chromium/tools/build.git"
     },
     "depot_tools": {