Setup for Meteor and Apollo Server v3

As far as I know, file upload has also changed in apollo server 3. 
May I know how to set the next code in meter?


```
async function startServer() {
  const server = new ApolloServer({
    typeDefs,
    resolvers,
  });
  await server.start();

  const app = express();

  // This middleware should be added before calling `applyMiddleware`.
  app.use(graphqlUploadExpress());

  server.applyMiddleware({ app });

  await new Promise(r => app.listen({ port: 4000 }, r));

  console.log(`🚀 Server ready at http://localhost:4000${server.graphqlPath}`);
}

```