fix: Fixed updation for straight_through routing

Author: Sarthak1799

crates/router/src/core/payments.rs

@@ -7331,6 +7331,10 @@ where
         .change_context(errors::ApiErrorResponse::InternalServerError)
         .attach_printable("Failed execution of straight through routing")?;
 
+        payment_data.set_routing_approach_in_attempt(Some(
+            common_enums::RoutingApproach::StraightThroughRouting,
+        ));
+
         if check_eligibility {
             let transaction_data = core_routing::PaymentsDslInput::new(
                 payment_data.get_setup_mandate(),