fix: Fix Python 3.8 compatibility - replace tuple[...] with Tuple[...] in type annotations

src/submission/simple_submit.py

@@ -8,7 +8,7 @@ import json
 import os
 import sys
 from datetime import datetime
-from typing import Dict, Any
+from typing import Dict, Any, Tuple
 from pathlib import Path
 
 # 导入OSS提交处理器
@@ -28,7 +28,7 @@ def format_success(msg):
 def format_warning(msg):
     return f"<p style='color: orange; font-size: 16px;'>{msg}</p>"
 
-def validate_sage_submission(submission_data: Dict[str, Any]) -> tuple[bool, str]:
+def validate_sage_submission(submission_data: Dict[str, Any]) -> Tuple[bool, str]:
     """验证SAGE基准提交格式"""
     
     # 检查必需的顶级字段