fix: type annotation

Author: roeap

object-store/object_store/__init__.py

@@ -96,7 +96,7 @@ def delete(self, location: PathLike) -> None:
         """
         return super().delete(_as_path(location))
 
-    def list(self, prefix: Optional[PathLike] = None) -> list[ObjectMeta]:
+    def list(self, prefix: Optional[PathLike] = None) -> List[ObjectMeta]:
         """List all the objects with the given prefix.
 
         Prefixes are evaluated on a path segment basis, i.e. `foo/bar/` is a prefix