[googletest] Update fuchsia-sdk deps in BUILD.gn

Apply the change from this CL to V8's version of googletest too:
https://chromium-review.googlesource.com/c/chromium/src/+/2059008

TBR=thakis@chromium.org

Bug: chromium:1076363
Change-Id: If51c47c88178e75bdc205dd6b72f6aa357ec2d4c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2172742
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67506}

third_party/googletest/BUILD.gn

@@ -96,8 +96,8 @@ source_set("gtest") {
 
   if (is_fuchsia) {
     deps += [
-      "//third_party/fuchsia-sdk/sdk:fdio",
-      "//third_party/fuchsia-sdk/sdk:zx",
+      "//third_party/fuchsia-sdk/sdk/pkg/fdio",
+      "//third_party/fuchsia-sdk/sdk/pkg/zx",
     ]
   }
 }