Apply ruff format after rebase

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: MaxGhenis

policyengine_uk_data/utils/calibrate.py

@@ -13,6 +13,7 @@
 
 logger = logging.getLogger(__name__)
 
+
 def load_weights(
     weight_file: Union[str, Path],
     dataset_key: str = "2025",
@@ -85,7 +86,6 @@ def load_weights(
     return arr
 
 
-
 def calibrate_local_areas(
     dataset: UKSingleYearDataset,
     matrix_fn,