formating for python 3.10

Author: davidsbatista

integrations/valkey/src/haystack_integrations/document_stores/valkey/document_store.py

@@ -1418,8 +1418,9 @@ def _validate_metadata_field_names(self, metadata_fields: list[str]) -> None:
             if normalized not in self._metadata_fields:
                 msg = (
                     f"Metadata field '{name}' is not configured for filtering. "
-                    f"Configured fields: {[ValkeyDocumentStore._metadata_field_to_doc_meta_key(f)
-                                           for f in self._metadata_fields]}."
+                    f"Configured fields: {
+                        [ValkeyDocumentStore._metadata_field_to_doc_meta_key(f) for f in self._metadata_fields]
+                    }."
                 )
                 raise ValueError(msg)