Update index.yml date

Author: kgremban

articles/iot-dps/index.yml

@@ -9,7 +9,7 @@ metadata:
   author: kgremban
   ms.service: iot-dps
   ms.topic: landing-page
-  ms.date: 04/26/2022
+  ms.date: 08/16/2024
   ms.author: kgremban
 
 # linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | sample | tutorial | video | whats-new