docs(node):fix node-rest example failed (#19797)

docs/examples/node/restexample/connect.js

@@ -3,18 +3,14 @@ const { options, connect } = require("@tdengine/rest");
 async function test() {
   options.path = "/rest/sql";
   options.host = "localhost";
+  options.port = 6041;
   let conn = connect(options);
   let cursor = conn.cursor();
   try {
     let res = await cursor.query("SELECT server_version()");
-    res.toString();
+    console.log("res.getResult()",res.getResult());
   } catch (err) {
     console.log(err);
   }
 }
 test();
-
-// output:
-// server_version() |
-// ===================
-// 3.0.0.0          |