style: apply ruff format for pre-commit

Run ruff format to satisfy the repository pre-commit hooks.

Authored by OpenClaw (model: gpt-5.4)

Author: njzjz-bot

lambench/metrics/vishelper/metrics_calculations.py

@@ -159,7 +159,9 @@ def calculate_generalizability_downstream_score(self) -> tuple[dict, dict]:
         )  # drop models with missing domain results
 
         # # Now aggregate all domains to get the final generalizability metrics for each model
-        return domain_results.to_dict(orient="index"), domain_results.mean(axis=1).to_dict()
+        return domain_results.to_dict(orient="index"), domain_results.mean(
+            axis=1
+        ).to_dict()
 
     def calculate_stability_results(self) -> dict[str, float]:
         """This calculates the stability score for a given LAM."""