fix: call node::Stop on exit (electron#25430)

Author: nornagon

shell/app/node_main.cc

@@ -284,7 +284,7 @@ int NodeMain(int argc, char* argv[]) {
 
     node::ResetStdio();
 
-    env->set_can_call_into_js(false);
+    node::Stop(env);
     env->stop_sub_worker_contexts();
     env->RunCleanup();
 

shell/browser/electron_browser_main_parts.cc

@@ -551,6 +551,7 @@ void ElectronBrowserMainParts::PostMainMessageLoopRun() {
   node_debugger_->Stop();
   node_env_->env()->set_trace_sync_io(false);
   js_env_->OnMessageLoopDestroying();
+  node::Stop(node_env_->env());
   node_env_.reset();
 
   ElectronBrowserContext::browser_context_map().clear();