Changes to Get Team Billing

added the optional property billed_seat_quantity to the response with the 200 status

added the optional property cancel_at_period_end to the response with the 200 status

added the optional property current_period_end to the response with the 200 status

added the optional property past_due_ends_at to the response with the 200 status

added the optional property seat_reconciliation_required to the response with the 200 status

added the optional property subscription_status to the response with the 200 status

added the required property billing_access_source to the response with the 200 status