feat(connector): [Bambora] Use connector_response_reference_id as reference to the connector (#2635)

Author: Rutam21

crates/router/src/connector/bambora/transformers.rs

@@ -214,7 +214,7 @@ impl<F, T>
                     mandate_reference: None,
                     connector_metadata: None,
                     network_txn_id: None,
-                    connector_response_reference_id: None,
+                    connector_response_reference_id: Some(pg_response.order_number.to_string()),
                 }),
                 ..item.data
             }),
@@ -238,7 +238,9 @@ impl<F, T>
                             .change_context(errors::ConnectorError::ResponseHandlingFailed)?,
                         ),
                         network_txn_id: None,
-                        connector_response_reference_id: None,
+                        connector_response_reference_id: Some(
+                            item.data.connector_request_reference_id.to_string(),
+                        ),
                     }),
                     ..item.data
                 })