Update freshness

Author: austinmccollum

articles/sentinel/billing-reduce-costs.md

@@ -5,7 +5,7 @@ author: austinmccollum
 ms.author: austinmc
 ms.custom: subject-cost-optimization
 ms.topic: conceptual
-ms.date: 07/09/2024
+ms.date: 03/31/2025
 appliesto:
     - Microsoft Sentinel in the Microsoft Defender portal
     - Microsoft Sentinel in the Azure portal