fix(sensor_airspeed_sim): match SimulatorMavlink rounding

Author: mbjd

src/modules/simulation/sensor_airspeed_sim/SensorAirspeedSim.cpp

@@ -184,8 +184,8 @@ void SensorAirspeedSim::check_failure_injection()
 		bool handled = false;
 		bool supported = false;
 
-		const int failure_unit = round(vehicle_command.param1);
-		const int failure_type = round(vehicle_command.param2);
+		const int failure_unit = static_cast<int>(std::lround(vehicle_command.param1));
+		const int failure_type = static_cast<int>(std::lround(vehicle_command.param2));
 
 		if (failure_unit == vehicle_command_s::FAILURE_UNIT_SENSOR_AIRSPEED) {