use beta-2

Author: allchiang-msft

articles/communication-services/how-tos/calling-sdk/manage-role-assignment.md

@@ -54,7 +54,7 @@ const role = meetingCall.role;
 ```
 
 > [!NOTE]
-> Collaborator is only available in beta for Azure Communication Services Calling Web SDK version 1.34.1-beta.1 or higher.
+> Collaborator is only available in beta for Azure Communication Services Calling Web SDK version 1.34.1-beta.2 or higher.
 
 ## Subscribe to role changes