Update mac-whatsnew.md

Author: denisebmsft

defender-endpoint/mac-whatsnew.md

@@ -6,7 +6,7 @@ author: emmwalshh
 ms.author: ewalsh
 manager: deniseb
 ms.localizationpriority: medium
-ms.date: 06/13/2025
+ms.date: 06/27/2025
 audience: ITPro
 ms.collection:
 - m365-security