Add submission # 5709

#5709

Author: ArduinoBot

registry.txt

@@ -7766,3 +7766,4 @@ https://github.com/kelasrobot/FoonteDuino.git|Contributed|FoonteDuino
 https://github.com/7Semi/SevenSemiSHT4x_Lib.git|Contributed|7SemiSHT4x_Lib
 https://github.com/schreibfaul1/ESP32-audioI2S.git|Contributed|ESP32-audioI2S-master
 https://github.com/median-dispersion/XPT2046-Driver.git|Contributed|XPT2046 Driver
+https://github.com/stacknix/stackmq-esp32.git|Contributed|Stackmq