描述bug

在使用 output_type 参数中的 List 时，YAML反序列化失败。以下是一个示例：

from haystack import Pipeline

pipeline_yaml = """
components:
output_adapter:
type: haystack.components.converters.output_adapter.OutputAdapter
init_parameters:
output_type: "List[str]"
template: "{{ test }}"
"""

Pipeline.loads(pipeline_yaml)

错误信息

Traceback (most recent call last):
  File "../haystack/haystack/core/pipeline/base.py", line 186, in from_dict
    instance = component_from_dict(component_class, component_data, name, callbacks)
  File "../haystack/haystack/core/serialization.py", line 118, in component_from_dict
    return do_from_dict()
  File "../haystack/haystack/core/serialization.py", line 113, in do_from_dict
    return cls.from_dict(data)
  File "../haystack/haystack/components/converters/output_adapter.py", line 141, in from_dict
    init_params["output_type"] = deserialize_type(init_params["output_type"])
  File "../haystack/haystack/utils/type_serialization.py", line 117, in deserialize_type
    main_type = deserialize_type(main_type_str)
  File "/Users/tanaysoni/haystack/haystack/utils/type_serialization.py", line 142, in deserialize_type
    raise DeserializationError(f"Could not locate the type: {type_name} in the module: {module_name}")
haystack.core.errors.DeserializationError: Could not locate the type: List in the module: builtins

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "../haystack/script.py", line 22, in <module>
    Pipeline.loads(pipeline_yaml)
  File "../haystack/haystack/core/pipeline/base.py", line 258, in loads
    return cls.from_dict(deserialized_data, callbacks)
  File "../haystack/haystack/core/pipeline/base.py", line 195, in from_dict
    raise DeserializationError(msg) from e
haystack.core.errors.DeserializationError: Couldn't deserialize component 'output_adapter' of class 'OutputAdapter' with the following data: {'type': 'haystack.components.converters.output_adapter.OutputAdapter', 'init_parameters': {'output_type': 'List[str]', 'template': '{{ test }}'}}. Possible reasons include malformed serialized data, mismatch between the serialized component and the loaded one (due to a breaking change, see https://github.com/deepset-ai/haystack/releases), etc.

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