update the URL of library

there were warning shown by the GitHub action for the release library, thus i have made this update to change the URL of the library. I have already submitted the request for the library name change.

Author: Vishal Kumar

repositories.txt

@@ -5549,7 +5549,6 @@ https://github.com/sparkfun/SparkFun_STTS22H_Arduino_Library
 https://github.com/khoih-prog/ContinuousStepper_Generic
 https://github.com/sparkfun/SparkFun_WM8960_Arduino_Library
 https://github.com/Beirdo/Arduino-FRAM-Cache
-https://github.com/mission-mangal/speed-control
+https://github.com/mission-mangal/SpeedControl
 https://github.com/mission-mangal/PositionControl
 https://github.com/maximemoreillon/iot-kernel
-https://github.com/mission-mangal/SpeedControl