Update repositories.txt

The name change is to replace DWIN_DGUS_HMI with DWIN_UNI_HMI.

Author: askinkeles

repositories.txt

@@ -8659,6 +8659,6 @@ https://github.com/filipporaciti/TS_lib.git
 https://github.com/maxrangner/GawiButtons
 https://github.com/goBILDA-Official/goBILDA-Pinpoint-Arduino-Library
 https://github.com/dac1e/AT24CxEeprom
-https://github.com/askinkeles/DWIN_DGUS_HMI
+https://github.com/askinkeles/DWIN_UNI_HMI
 https://github.com/JorgeGBeltre/MQTTOTA
 https://github.com/elevoi/ESteme