Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/0dfb09a..eb675d7

TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: Ic43d9ba2687399b41e04672356163ed075ec6f4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512779Reviewed-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@{#70908}

DEPS

@@ -91,7 +91,7 @@ vars = {
 
 deps = {
   'build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '0dfb09a43ba9545a60f1b466b87fb56e64279277',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'eb675d712dce8aaa9e4754825e85e57d8089149d',
   'third_party/depot_tools':
     Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '9396c2b0646a73f3cbe53b06424c53bddb8064d3',
   'third_party/icu':