examples(with-routes-graphql): update GraphQL Yoga to v3 (vercel#41478)

Update the `with-routes-graphql` example to [GraphQL Yoga](https://www.the-guild.dev/graphql/yoga-server/) new major ([migration guide](https://www.the-guild.dev/graphql/yoga-server/v3/migration/migration-from-yoga-v2)).

Author: charlypoly

examples/api-routes-graphql/package.json

@@ -6,7 +6,7 @@
     "start": "next start"
   },
   "dependencies": {
-    "@graphql-yoga/node": "^2.11.2",
+    "graphql-yoga": "three",
     "graphql": "^16.5.0",
     "next": "latest",
     "react": "^18.2.0",

examples/api-routes-graphql/pages/api/graphql.ts

@@ -1,4 +1,4 @@
-import { createServer } from '@graphql-yoga/node'
+import { createYoga, createSchema } from 'graphql-yoga'
 
 const typeDefs = /* GraphQL */ `
   type Query {
@@ -17,13 +17,13 @@ const resolvers = {
   },
 }
 
-const server = createServer({
-  schema: {
-    typeDefs,
-    resolvers,
-  },
-  endpoint: '/api/graphql',
-  // graphiql: false // uncomment to disable GraphiQL
+const schema = createSchema({
+  typeDefs,
+  resolvers,
 })
 
-export default server
+export default createYoga({
+  schema,
+  // Needed to be defined explicitly because our endpoint lives at a different path other than `/graphql`
+  graphqlEndpoint: '/api/graphql',
+})