fix cython type error

app/modules/indexer/spider/torrentleech.py

@@ -1,4 +1,4 @@
-from typing import List, Tuple
+from typing import List, Tuple, Optional
 from urllib.parse import quote
 
 from app.core.config import settings
@@ -23,7 +23,7 @@ class TorrentLeech:
             self._proxy = settings.PROXY
             self._timeout = indexer.get('timeout') or 15
 
-    def search(self, keyword: str, page: int = 0) -> Tuple[bool, List[dict]]:
+    def search(self, keyword: str, page: Optional[int] = 0) -> Tuple[bool, List[dict]]:
 
         if StringUtils.is_chinese(keyword):
             # 不支持中文