[CI Failure] Skip failing nvfp4 silu test (#23959)

Signed-off-by: mgoin <mgoin64@gmail.com>
Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com>

tests/kernels/quantization/test_silu_nvfp4_quant_fusion.py

@@ -8,7 +8,8 @@ from vllm.model_executor.layers.activation import SiluAndMul
 from vllm.platforms import current_platform
 from vllm.scalar_type import scalar_types
 
-if not current_platform.has_device_capability(100):
+if not (current_platform.has_device_capability(100)
+        and hasattr(torch.ops._C, "silu_and_mul_nvfp4_quant")):
     pytest.skip(reason="Nvfp4 Requires compute capability of 10 or above.",
                 allow_module_level=True)