[to #42322933] specify ast scan file open encoding

Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/10090797

    * [to #42322933] specify ast scan file open encoding

modelscope/utils/ast_utils.py

@@ -394,7 +394,7 @@ class AstScaning(object):
 
     def generate_ast(self, file):
         self._refresh()
-        with open(file, 'r') as code:
+        with open(file, 'r', encoding='utf8') as code:
             data = code.readlines()
         data = ''.join(data)