Disable UnifiedHeapTest.TracedReferenceRetainsFromStack on Fuchsia

Test still fails after the previous fix.

No-try: true
Bug: v8:11933
Change-Id: I55100631e6f168728075234bddc6f9fd558c1e89
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3251169Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77605}

test/unittests/heap/unified-heap-unittest.cc

@@ -175,6 +175,7 @@ TEST_F(UnifiedHeapTest, FreeUnreferencedDuringNoGcScope) {
 }
 #endif  // DEBUG
 
+#if !V8_OS_FUCHSIA
 TEST_F(UnifiedHeapTest, TracedReferenceRetainsFromStack) {
   v8::HandleScope handle_scope(v8_isolate());
   v8::Local<v8::Context> context = v8::Context::New(v8_isolate());
@@ -190,6 +191,7 @@ TEST_F(UnifiedHeapTest, TracedReferenceRetainsFromStack) {
   auto local = holder.Get(v8_isolate());
   EXPECT_TRUE(local->IsObject());
 }
+#endif  // !V8_OS_FUCHSIA
 
 TEST_F(UnifiedHeapDetachedTest, AllocationBeforeConfigureHeap) {
   auto heap = v8::CppHeap::Create(