add line breaks for consistency

Author: Giorgio Trettenero

pyiceberg/table/snapshots.py

@@ -312,6 +312,7 @@ def build(self) -> Dict[str, str]:
             for partition_path, update_metrics_partition in self.partition_metrics.items():
                 if (summary := self._partition_summary(update_metrics_partition)) and len(summary) != 0:
                     properties[CHANGED_PARTITION_PREFIX + partition_path] = summary
+
         return properties
 
     def _partition_summary(self, update_metrics: UpdateMetrics) -> str: