Update repositories.txt (#5476)

Arduino library for PCA9632 and PCA9633 4 channel, I2C LED driver.

Author: RobTillaart

repositories.txt

@@ -5425,6 +5425,7 @@ https://github.com/RobTillaart/PCA9549
 https://github.com/RobTillaart/PCA9551
 https://github.com/RobTillaart/PCA9552
 https://github.com/RobTillaart/PCA9553
+https://github.com/RobTillaart/PCA9632
 https://github.com/RobTillaart/PCA9634
 https://github.com/RobTillaart/PCA9635
 https://github.com/RobTillaart/PCA9685_RT