Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/c6a6de1..710b42c

Rolling v8/third_party/aemu-linux-x64: 3BZ2tnIBSRNhCGGy-kjxHmfx7sU6OP0zvO9x3gtnnY8C..DUWCHyibCTWCe-ijlAKpinTlXaJQW2jg8hs7uRUfK0gC

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

Change-Id: I0b8ab37f65b85d3c6df60e1da426774cca96222c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2646138Reviewed-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@{#72276}

DEPS

@@ -88,7 +88,7 @@ vars = {
 
 deps = {
   'build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'c6a6de1c109079fea79b8aa8e79b782192377fa3',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + '710b42c08be2d80bf25542805e0d3b4d40a35d3e',
   'third_party/depot_tools':
     Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '07bd252238b7ba84f7039dc55ce03b37e475489c',
   'third_party/icu':
@@ -239,7 +239,7 @@ deps = {
       'packages': [
           {
               'package': 'fuchsia/third_party/aemu/linux-amd64',
-              'version': '3BZ2tnIBSRNhCGGy-kjxHmfx7sU6OP0zvO9x3gtnnY8C'
+              'version': 'DUWCHyibCTWCe-ijlAKpinTlXaJQW2jg8hs7uRUfK0gC'
           },
       ],
       'condition': 'host_os == "linux" and checkout_fuchsia',