fix(simple_planning_simulator): change orger of IDX in SimModelDelayS… (

autowarefoundation#9128)

Signed-off-by: Dawid Moszynski <dawid.moszynski@robotec.ai>

simulator/simple_planning_simulator/include/simple_planning_simulator/vehicle_model/sim_model_delay_steer_acc_geared_wo_fall_guard.hpp

@@ -63,8 +63,8 @@ class SimModelDelaySteerAccGearedWoFallGuard : public SimModelInterface
     YAW,
     VX,
     STEER,
-    PEDAL_ACCX,
     ACCX,
+    PEDAL_ACCX,
   };
   enum IDX_U { PEDAL_ACCX_DES = 0, GEAR, SLOPE_ACCX, STEER_DES };