Fix repository URL

Author: ciniml

library.properties

@@ -5,6 +5,6 @@ maintainer=Kenta Ida <fuga@fugafuga.org>
 sentence=WireGuard implementation for Arduino ESP32
 paragraph=WireGuard implementation for Arduino ESP32
 category=Communication
-url=https://github.com/ciniml/Arduino-WireGuard-ESP32
+url=https://github.com/ciniml/WireGuard-ESP32-Arduino
 includes=WireGuard.hpp
 architectures=esp32