doc: fix "task_processor.js" typo

PR-URL: #45257
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: theanarkh <theratliter@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>

doc/api/async_context.md

@@ -593,7 +593,7 @@ export default class WorkerPool extends EventEmitter {
   }
 
   addNewWorker() {
-    const worker = new Worker(new URL('task_processer.js', import.meta.url));
+    const worker = new Worker(new URL('task_processor.js', import.meta.url));
     worker.on('message', (result) => {
       // In case of success: Call the callback that was passed to `runTask`,
       // remove the `TaskInfo` associated with the Worker, and mark it as free