Fixed formatting

Author: aIbrahiim

sdks/python/apache_beam/testing/load_tests/dataflow_cost_benchmark.py

@@ -192,9 +192,7 @@ def _get_throughput_metrics(
   ) -> dict[str, float]:
     """Query Cloud Monitoring for per-PCollection throughput."""
     name = (
-        pcollection_name
-        if pcollection_name is not None
-        else self.pcollection)
+        pcollection_name if pcollection_name is not None else self.pcollection)
     interval = monitoring_v3.TimeInterval(
         start_time=start_time, end_time=end_time)
     aggregation = monitoring_v3.Aggregation(