fix: 修复级联指令组时出现载入错误的问题

astrbot/core/star/register/star_handler.py

@@ -64,7 +64,7 @@ def register_command(command_name: str = None, *args):
 
     return decorator
 
-def register_command_group(command_group_name: str = None, desc: str = "", *args):
+def register_command_group(command_group_name: str = None, *args):
     '''注册一个 CommandGroup
     '''