chore: upgrade sdk

.wundergraph/wundergraph.server.ts

@@ -1,4 +1,4 @@
-import { configureWunderGraphServer } from "@wundergraph/sdk";
+import { configureWunderGraphServer } from "@wundergraph/sdk/server";
 import type { HooksConfig } from "./generated/wundergraph.hooks";
 import type { InternalClient } from "./generated/wundergraph.internal.client";
 
@@ -12,6 +12,5 @@ export default configureWunderGraphServer<HooksConfig, InternalClient>(() => ({
       },
     },
     mutations: {},
-  },
-  graphqlServers: [],
+  }
 }));