Add M5Stack Unit Step16 library to repositories.txt (#6667)

Ocean-lhy · web-flow · commit 6e8e0e8941db · 2025-07-29T04:20:13.000Z
diff --git a/repositories.txt b/repositories.txt
@@ -8278,3 +8278,4 @@ https://github.com/TexhFexLabs/HydroNode-Library
 https://github.com/ConsentiumIoT/EdgeSense
 https://github.com/AntonioPrevitali/ApJSY163T
 https://github.com/MicrochipTech/RNWF02_WIFI_ARDUINO_LIBRARY
+https://github.com/m5stack/M5Unit-Step16
