fixing ruff format for trunk (#2369)

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Author: HDCharles

torchao/dtypes/fbgemm_int4_tensor.py

@@ -24,7 +24,7 @@
 aten = torch.ops.aten
 
 
-try: 
+try:
     from fbgemm_gpu.experimental.gen_ai.quantize import int4_row_quantize_zp, pack_int4
 except:
     int4_row_quantize_zp = None