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

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

vllm/ray/lazy_utils.py

@@ -6,6 +6,7 @@ def is_ray_initialized():
     """Check if Ray is initialized."""
     try:
         import ray
+
         return ray.is_initialized()
     except ImportError:
         return False
@@ -16,7 +17,10 @@ def is_in_ray_actor():
 
     try:
         import ray
-        return (ray.is_initialized()
-                and ray.get_runtime_context().get_actor_id() is not None)
+
+        return (
+            ray.is_initialized()
+            and ray.get_runtime_context().get_actor_id() is not None
+        )
     except ImportError:
         return False