Convert formatting to use ruff instead of yapf + isort (#26247)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

tests/v1/metrics/test_engine_logger_apis.py

@@ -46,23 +46,22 @@ def log_stats_enabled_engine_args():
 
 
 @pytest.mark.asyncio
-async def test_async_llm_replace_default_loggers(
-        log_stats_enabled_engine_args):
+async def test_async_llm_replace_default_loggers(log_stats_enabled_engine_args):
     """
     RayPrometheusStatLogger should replace the default PrometheusStatLogger
     """
 
-    engine = AsyncLLM.from_engine_args(log_stats_enabled_engine_args,
-                                       stat_loggers=[RayPrometheusStatLogger])
-    assert isinstance(engine.logger_manager.prometheus_logger,
-                      RayPrometheusStatLogger)
+    engine = AsyncLLM.from_engine_args(
+        log_stats_enabled_engine_args, stat_loggers=[RayPrometheusStatLogger]
+    )
+    assert isinstance(engine.logger_manager.prometheus_logger, RayPrometheusStatLogger)
     engine.shutdown()
 
 
 @pytest.mark.asyncio
 async def test_async_llm_add_to_default_loggers(log_stats_enabled_engine_args):
     """
-    It's still possible to use custom stat loggers exclusively by passing 
+    It's still possible to use custom stat loggers exclusively by passing
     disable_log_stats=True in addition to a list of custom stat loggers.
     """
     # Create engine_args with disable_log_stats=True for this test
@@ -70,12 +69,14 @@ async def test_async_llm_add_to_default_loggers(log_stats_enabled_engine_args):
     disabled_log_engine_args.disable_log_stats = True
 
     # Disable default loggers; pass custom stat logger to the constructor
-    engine = AsyncLLM.from_engine_args(disabled_log_engine_args,
-                                       stat_loggers=[DummyStatLogger])
+    engine = AsyncLLM.from_engine_args(
+        disabled_log_engine_args, stat_loggers=[DummyStatLogger]
+    )
 
     assert len(engine.logger_manager.per_engine_logger_dict[0]) == 1
-    assert isinstance(engine.logger_manager.per_engine_logger_dict[0][0],
-                      DummyStatLogger)
+    assert isinstance(
+        engine.logger_manager.per_engine_logger_dict[0][0], DummyStatLogger
+    )
 
     # log_stats is still True, since custom stat loggers are used
     assert engine.log_stats