Update troubleshoot-bare-metal-machine-provisioning.md

Updating 'author' metadata with github alias.

Author: bartpinto

articles/operator-nexus/troubleshoot-bare-metal-machine-provisioning.md

@@ -5,7 +5,7 @@ ms.service: azure-operator-nexus
 ms.custom: troubleshooting
 ms.topic: troubleshooting
 ms.date: 07/19/2024
-author: bpinto
+author: bartpinto
 ms.author: bpinto
 ---