fixed type errors when pylance type checking mode is strict.

mdrsclient/models/folder.py

@@ -1,4 +1,4 @@
-from typing import Final, NamedTuple
+from typing import Any, Final, NamedTuple
 from unicodedata import normalize
 
 from pydantic.dataclasses import dataclass
@@ -66,7 +66,7 @@ class FolderSimple:
 
 @dataclass(frozen=True)
 class Folder(FolderSimple):
-    metadata: list[dict]
+    metadata: list[dict[str, Any]]
     sub_folders: list[FolderSimple]
     files: list[File]
     path: str