Update product name from azure-ai-foundry to microsoft-foundry

Author: riswinto

learn-pr/wwl-sci/azure-ai-foundry-configure-manage-guardrails/index.yml

@@ -33,7 +33,7 @@ roles:
 - developer
 products:
 - azure
-- azure-ai-foundry
+- microsoft-foundry
 - defender-for-cloud
 subjects:
 - security