Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/979d8e9..dcc42e4

TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: I546232777c63699a9c25b72320556266b2b4c854
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3004839Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#75544}

DEPS

@@ -92,7 +92,7 @@ deps = {
   'base/trace_event/common':
     Var('chromium_url') + '/chromium/src/base/trace_event/common.git' + '@' + 'd5bb24e5d9802c8c917fcaa4375d5239a586c168',
   'build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '979d8e9c7f4847f99157dd0ec03785d0fdbe8c34',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'dcc42e4be05659944483bbfe741ecbc74a1fbc5d',
   'buildtools':
     Var('chromium_url') + '/chromium/src/buildtools.git' + '@' + 'fd3f3c19981cd8fe4e4f11e0a7b8fb6cf329807e',
   'buildtools/clang_format/script':