Update V8 DEPS.

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/246a39a..47b9857

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Change-Id: Ia6870fe800590533b799e96437db0a275284454f
Reviewed-on: https://chromium-review.googlesource.com/446640Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43434}

DEPS

@@ -48,7 +48,7 @@ deps_os = {
     "v8/third_party/android_tools":
       Var("chromium_url") + "/android_tools.git" + "@" + "b43a6a289a7588b1769814f04dd6c7d7176974cc",
     "v8/third_party/catapult":
-      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "246a39a82c2213d913a96fff020a263838dc76e6",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "47b98570f6e86ab98d28a572c4111fa15b22c3eb",
   },
   "win": {
     "v8/third_party/cygwin":