test: add missing hasPostData in test-inspector-emit-protocol-event

PR-URL: nodejs#59412
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: islandryu

test/parallel/test-inspector-emit-protocol-event.js

@@ -27,6 +27,7 @@ const EXPECTED_EVENTS = {
           url: 'https://nodejs.org/en',
           method: 'GET',
           headers: {},
+          hasPostData: false,
         },
         timestamp: 1000,
         wallTime: 1000,