Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/1016d67..b3c270e

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/3b39cef..364205c

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

Change-Id: I4130d3e2ea1335fc6fbf6782ee3e602e2804c8d4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2607771Reviewed-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@{#71895}

DEPS

@@ -88,9 +88,9 @@ vars = {
 
 deps = {
   'build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '1016d674b32524375f6469b00267dcaed712ed91',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'b3c270e43c03ad0b1cde3f34a88ba183fc073b10',
   'third_party/depot_tools':
-    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '3b39cefc6195f782b655e2c73ac2a73313c28879',
+    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '364205c70ed16c00802b1c264e88d8e03a0b37ae',
   'third_party/icu':
     Var('chromium_url') + '/chromium/deps/icu.git' + '@' + '899e18383fd732b47e6978db2b960a1b2a80179b',
   'third_party/instrumented_libraries':