Update repositories.txt (#6114)

Add KukaVar lib

Author: italo-coelho

repositories.txt

@@ -3128,6 +3128,7 @@ https://github.com/Isaranu/Senses_wifi
 https://github.com/Isaranu/Senses_wifi_esp32
 https://github.com/italia/cie-PN532
 https://github.com/italo-coelho/pushButton
+https://github.com/italo-coelho/KukaVar
 https://github.com/ito-soft-design/irboard_esp32
 https://github.com/ivanseidel/ArduinoSensors
 https://github.com/ivanseidel/ArduinoThread