update front-matter timestamp

Author: andrewconnell

docs/spfx/viva/get-started/actions/media-upload/MediaUploadTutorial.md

@@ -1,7 +1,7 @@
 ---
 title: Create an Adaptive Card Extension with the select media action
 description: Step by step guide on how to create an Adaptive Card Extension with the select media action.
-ms.date: 07/25/2022
+ms.date: 01/26/2023
 ms.localizationpriority: high
 ---
 # Create an Adaptive Card Extension with select media action