[nfc] fix typo tests/

[digger-yu]

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fix typo tests/
detail info
modified: tests/kit/model_zoo/registry.py
modified: tests/test_auto_parallel/test_tensor_shard/test_node_handler/test_batch_norm_handler.py
modified: tests/test_auto_parallel/test_tensor_shard/test_node_handler/test_output_handler.py
modified: tests/test_tensor/test_dtensor/test_layout_converter.py

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