fix(concurrency): run ruff format to fix E303 violations

Ruff format cleaned up 3 consecutive blank lines in
validation_pipeline_steps.py and added a missing blank line
in validation_pipeline_output_steps.py.

ISSUES CLOSED: #7811

features/steps/validation_pipeline_output_steps.py

@@ -62,6 +62,7 @@ def step_then_result_positive_duration(context: Any, name: str) -> None:
         f"Expected duration_ms > 0 for '{name}', got {result.duration_ms}"
     )
 
+
 @then(r"the plan metadata contains validation_summary")
 def step_then_plan_metadata_has_summary(context: Any) -> None:
     assert context.vp_plan_metadata is not None

features/steps/validation_pipeline_steps.py

@@ -469,9 +469,6 @@ def step_then_group_result_count(context: Any, resource: str, count: str) -> Non
     assert actual == cnt, f"Expected {cnt} results for '{resource}', got {actual}"
 
 
-
-
-
 # Reset to default parse matcher
 use_step_matcher("parse")