Add servicebus_topics scope for role assignment

[trapeznikov]

PR Checklist

---

• I have added example(s) inside the [./examples/] folder
• I have added the example(s) to the integration test list for normal (~30 minutes) or long runner >30 minutes
• I have checked the coding conventions as per the wiki
• I have checked to ensure there aren't other open Pull Requests for the same update/change?

Description

Does this introduce a breaking change

• YES
• NO

Testing

role_mapping = {
  built_in_role_mapping = {
    servicebus_topics = {
      "topic" = {
        "Azure Service Bus Data Sender" = {
          azuread_groups = {
            keys = ["group"]
          }
        }
      }
    } 
  }
}