(AzureCXP) Update Action Type to Reflect current

Based on customer feedback on this GitHub , created this PR.
https://github.com/MicrosoftDocs/azure-docs/issues/50996

Based on the current Action Types for creating Action Groups we see in the Azure Portal UI.

Author: BharathNimmala-MSFT

articles/azure-monitor/platform/action-groups.md

@@ -46,7 +46,7 @@ For information on how to use Azure Resource Manager templates to configure acti
 
     1. **Name**: Enter a unique identifier for this action.
 
-    1. **Action Type**: Select Email/SMS/Push/Voice, Logic App, Webhook, ITSM, or Automation Runbook.
+    1. **Action Type**: Select Automation Runbook, Azure Function, Email Azure Resource Manager Role, Email/SMS/Push/Voice, ITSM, Logic App, Secure Webhook, Webhook.
 
     1. **Details**: Based on the action type, enter a phone number, email address, webhook URI, Azure app, ITSM connection, or Automation runbook. For ITSM Action, additionally specify **Work Item** and other fields your ITSM tool requires.