Fixes broken URL.

Author: kenwith

articles/active-directory/app-proxy/application-proxy-faq.yml

@@ -9,7 +9,7 @@ metadata:
   ms.subservice: app-proxy
   ms.workload: identity
   ms.topic: faq
-  ms.date: 09/14/2023
+  ms.date: 10/02/2023
   ms.author: kenwith
   ms.reviewer: ashishj
 title: Microsoft Entra application proxy frequently asked questions