fix(xpu): fix python format

Signed-off-by: dbyoung18 <yang5.yang@intel.com>

Author: dbyoung18

vllm/utils/__init__.py

@@ -1888,7 +1888,8 @@ def supports_dynamo() -> bool:
 
 # Supports xccl with PyTorch versions >= 2.8.0 for XPU platform
 def supports_xccl() -> bool:
-    return is_torch_equal_or_newer("2.8.0") and torch.distributed.is_xccl_available()
+    return is_torch_equal_or_newer(
+        "2.8.0") and torch.distributed.is_xccl_available()
 
 
 # Some backends use pytorch version < 2.4.0 which doesn't