Add missing import (nodejs#1997)

blazingzephyr · metcoder95 · commit af1239913a89 · 2023-07-21T18:01:57.000+02:00
diff --git a/types/websocket.d.ts b/types/websocket.d.ts
@@ -1,5 +1,6 @@
 /// <reference types="node" />
 
+import type { MessagePort } from 'worker_threads'
 import {
   EventTarget,
   Event,
