Add submission # 6630

#6630

Author: ArduinoBot

registry.txt

@@ -8237,3 +8237,4 @@ https://github.com/EduKits/UltraPing.git|Contributed|UltraPing
 https://github.com/MicroSui/microsui-lib.git|Contributed|MicroSui
 https://github.com/muki01/OBD2_KLine_Library.git|Contributed|OBD2 K-Line
 https://github.com/MouseZver/AsyncTempSensor.git|Contributed|AsyncTempSensor
+https://github.com/max22-/ble-keyboard-mouse-client.git|Contributed|ble-keyboard-mouse-client