Update author

Author: TimShererWithAquent

articles/private-5g-core/upgrade-packet-core-azure-portal.md

@@ -2,7 +2,7 @@
 title: Upgrade a packet core instance
 titleSuffix: Azure Private 5G Core
 description: In this how-to guide, you'll learn how to upgrade a packet core instance using the Azure portal. 
-author: robswain
+author: anzaman
 ms.author: alzam
 ms.service: azure-private-5g-core
 ms.topic: how-to