Update author information in index.yml

I've been asked to move ownership of this learning path to [email protected]. Please reach out to [email protected] with questions.

Author: Randall-Knapp

learn-pr/paths/oracle-workloads-to-azure/index.yml

@@ -6,7 +6,7 @@ metadata:
   brand: azure
   ms.date: 07/01/2024
   author: Randall-Knapp
-  ms.author: askabadi
+  ms.author: marcobellini
   ms.topic: learning-path
 title: Migrate Oracle workloads to Azure
 summary: |