Add submission # 6455

#6455

Author: ArduinoBot

registry.txt

@@ -8223,3 +8223,4 @@ https://github.com/danmowehhuk/StreamableDTO.git|Contributed|StreamableDTO
 https://github.com/ronibandini/ESP32N8NButton.git|Contributed|ESP32N8NButton
 https://github.com/ardlib/bosejis_PKAE_Timer.git|Contributed|PKAE_Timer
 https://github.com/saveme1507/EasyMQTT.git|Contributed|EasyMQTT
+https://github.com/MAKE-arduino/M_RGB.git|Contributed|M_RGB