doc: add esm example in path.md

PR-URL: #55745
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>

Author: avivkeller

doc/api/path.md

@@ -9,10 +9,14 @@
 The `node:path` module provides utilities for working with file and directory
 paths. It can be accessed using:
 
-```js
+```cjs
 const path = require('node:path');
 ```
 
+```mjs
+import path from 'node:path';
+```
+
 ## Windows vs. POSIX
 
 The default operation of the `node:path` module varies based on the operating