Update repositories.txt (#7237)

Co-authored-by: Per Tillisch <accounts@perglass.com>

Author: 1998Saeed

repositories.txt

@@ -8584,4 +8584,5 @@ https://github.com/juano2310/SuperCAN
 https://github.com/Protocentral/SensythingCore
 https://github.com/sintrb/ANSI_Output
 https://github.com/mlaass/wamr-esp32-arduino.git
+https://github.com/1998Saeed/MechaNest
 https://github.com/ertgtct/mcpesp