Update RCSwitchNode.cpp

Line 92 needs to be changed for new node-red versions

src/RCSwitchNode.cpp

@@ -89,7 +89,7 @@ void RCSwitchNode::New(const Nan::FunctionCallbackInfo<v8::Value>& info) {
     const int argc = 0;
     v8::Local<v8::Value> argv[argc];
     v8::Local<v8::Function> cons = Nan::New<v8::Function>(constructor);
-    info.GetReturnValue().Set(cons->NewInstance(argc, argv));
+    info.GetReturnValue().Set(Nan::NewInstance(cons, argc, argv).ToLocalChecked());
   }
 }