Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/0a96846..69e3270

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0081c0f..a19d353

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: Ie36db05802205713ad5a49cfa180c58e32fda94f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1831187Reviewed-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@{#64054}

DEPS

@@ -71,9 +71,9 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '0a96846217ec16e8c83ab609457a0da6ac2b10af',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + '69e327091ad13d761bfd91ccab6d06920308eaf8',
   'v8/third_party/depot_tools':
-    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '0081c0ff173c3af29933cbc6965d4a2d83b09576',
+    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + 'a19d35307bbed0ad41cad4e5b06ff052c43fc631',
   'v8/third_party/icu':
     Var('chromium_url') + '/chromium/deps/icu.git' + '@' + '2ecd66c696c46e255cd634d3175b1072f4499949',
   'v8/third_party/instrumented_libraries':