I tried restart Blender several times. The git update seems working (and recursively), I noticed the following error occurs again and again when I update the SDK.
PermissionError: [WinError 5] Access is denied: 'C:\\Users\\Abc\\AppData\\Roaming\\Blender Foundation\\Blender\\2.80\\scripts\\addons\\armsdk//Kha\\Tools\\haxe\\haxe.exe'