mypy fix

Author: paraseba

icechunk-python/python/icechunk/_icechunk_python.pyi

@@ -2282,6 +2282,11 @@ class Storage:
         base_url: str,
         config: dict[str, str] | None = None,
     ) -> Storage: ...
+    @classmethod
+    def new_redirect(
+        cls,
+        base_url: str,
+    ) -> Storage: ...
     def __repr__(self) -> str: ...
     def default_settings(self) -> StorageSettings: ...