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

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

tests/distributed/test_ca_buffer_sharing.py

@@ -12,7 +12,8 @@ import torch.distributed as dist
 
 from vllm.distributed.device_communicators.cuda_wrapper import CudaRTLibrary
 from vllm.distributed.device_communicators.custom_all_reduce import (  # noqa
-    CustomAllreduce)
+    CustomAllreduce,
+)
 
 # create a cpu process group for communicating metadata (ipc handle)
 dist.init_process_group(backend="gloo")
@@ -52,7 +53,8 @@ for p in pointers:
         assert ord(host_data[i]) == byte_value, (
             f"Rank {rank} failed"
             f" to verify buffer {p}. Expected {byte_value}, "
-            f"got {ord(host_data[i])}")
+            f"got {ord(host_data[i])}"
+        )
 
 print(f"Rank {rank} verified all buffers")