Enable runout sensor in EEPROM by default (#14771)

Marlin/src/module/configuration_store.cpp

@@ -574,7 +574,7 @@ void MarlinSettings::postprocess() {
       #if HAS_FILAMENT_SENSOR
         const bool &runout_sensor_enabled = runout.enabled;
       #else
-        const bool runout_sensor_enabled = false;
+        const bool runout_sensor_enabled = true;
       #endif
       #if HAS_FILAMENT_SENSOR && defined(FILAMENT_RUNOUT_DISTANCE_MM)
         const float &runout_distance_mm = runout.runout_distance();