ref(traffic_simulator): add blank line to traffic_simulator test

simulation/traffic_simulator/test/src/traffic_lights/test_traffic_lights_internal_v2i.cpp

@@ -19,6 +19,7 @@
 #include "helper.hpp"
 
 constexpr double eps = 1e-6;
+
 // Frequency can fluctuate a bit due to timing, especially when the machine is under heavy load, so higher tolerance is needed
 constexpr double frequency_eps = 0.5;