Fix Yolos ONNX export test
# What does this PR do?

YOLOS has issue on ONNX exporting on CUDA. Let's skip it, just like [this](https://github.com/ultralytics/yolov5/pull/8378).

**Question**: we can enable this if there is a way to run the export non-dynamically for this model.

current job failure
```
tests/onnx/test_onnx_v2.py::OnnxExportTestCaseV2::test_pytorch_export_on_cuda_143_yolos_default
(line 318)  AssertionError: yolos, default -> Expected all tensors to be on the same device, but found at least two devices, cuda:1 and cpu! (when checking argument for argument index in method wrapper__index_select)
tests/onnx/test_onnx_v2.py::OnnxExportTestCaseV2::test_pytorch_export_on_cuda_144_yolos_object_detection
(line 318)  AssertionError: yolos, object-detection -> Expected all tensors to be on the same device, but found at least two devices, cuda:1 and cpu! (when checking argument for argument index in method wrapper__index_select)
```
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