Upgrade jquery version in sample (#826)

Author: xingsy97

sdk/webpubsub-socketio-extension/examples/chat-with-negotiate/public/index.html

@@ -26,7 +26,7 @@ <h3 class="title">What's your nickname?</h3>
     var idx = Math.floor(Math.random()*100) % names.length;
     document.querySelector('.usernameInput').value = names[idx];
   </script>
-  <script src="https://code.jquery.com/jquery-1.10.2.min.js"></script>
+  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
   <script src="/socket.io/socket.io.min.js" crossorigin="anonymous"></script>
   <script src="./main.js"></script>
 </body>