Add library - RoboCore BRIICK Keypad (#5183)

* Update repositories.txt

Added the library "RoboCore Rocky".

* Update repositories.txt

Added the Arduino library RoboCore BRIICK Keypad.

Author: gfretin

repositories.txt

@@ -5127,6 +5127,7 @@ https://github.com/Robertndrei/SCD30-Modbus
 https://github.com/robertsallent/arduino_flanco
 https://github.com/robgmsn/PureDigit
 https://github.com/Robo-Wunderkind/RoboWunduino
+https://github.com/RoboCore/RoboCore_BRIICK_Keypad
 https://github.com/RoboCore/RoboCore_MMA8452Q
 https://github.com/RoboCore/RoboCore_Rocky
 https://github.com/RoboCore/RoboCore_SMW-SX1262M0