Bump upstream V8 version to 6.0.286.44

ignisf · ignisf · commit e37cfd50c1fb · 2017-07-26T18:25:39.000+03:00
diff --git a/lib/libv8/version.rb b/lib/libv8/version.rb
@@ -1,3 +1,3 @@
 module Libv8
-  VERSION = "5.9.211.38.1"
+  VERSION = "6.0.286.44.0beta1"
 end
diff --git a/vendor/depot_tools b/vendor/depot_tools
@@ -1 +1 @@
-Subproject commit 290f5f566af895a1ac72b44e5439c2a878091c76
+Subproject commit 56766f1d6234c07d219f61802db52194aed3a9ac
diff --git a/vendor/v8 b/vendor/v8
@@ -1 +1 @@
-Subproject commit d96f5c48c5f4885d3624198d0b58d05f6839b8d3
+Subproject commit de3eac39923aeb8db4908751afa078c3b89c578a
