test: fix broken env fuzzer by initializing process

Signed-off-by: Adam Korczynski <adam@adalogics.com>
PR-URL: #51080
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

test/fuzzers/fuzz_env.cc

@@ -44,6 +44,7 @@ extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
   platform.reset(
     new node::NodePlatform(kV8ThreadPoolSize, tracing_controller));
   v8::V8::InitializePlatform(platform.get());
+  cppgc::InitializeProcess(platform->GetPageAllocator());
   v8::V8::Initialize();
   return 0;
 }