[test] add npu test yaml and add ascend a3 docker file (#9547)

Co-authored-by: jiaqiw09 <jiaqiw960714@gmail.com>

tests/data/processor/test_pairwise.py

@@ -51,6 +51,7 @@ def _convert_sharegpt_to_openai(messages: list[dict[str, str]]) -> list[dict[str
     return new_messages
 
 
+@pytest.mark.runs_on(["cpu"])
 @pytest.mark.parametrize("num_samples", [16])
 def test_pairwise_data(num_samples: int):
     train_dataset = load_dataset_module(**TRAIN_ARGS)["train_dataset"]