Failed on python 3.12 with AttributeError

[sh1nj1]

CI does not fail but my env fails even if I create new conda environment

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ERROR: test_to_markdown (tests.test_generator.TestToMarkdown.test_to_markdown) (api_file='test-api2.yaml', expected_output_file='expected_test-api2.md')
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Traceback (most recent call last):
  File "/project/vrerv/openapi-markdown/tests/test_generator.py", line 26, in test_to_markdown
    self._test_to_markdown(api_file, expected_output_file)
  File "/project/vrerv/openapi-markdown/tests/test_generator.py", line 30, in _test_to_markdown
    to_markdown(TESTDIR + api_file, TESTDIR + output_file, templates_dir='templates')
  File "/project/vrerv/openapi-markdown/src/openapi_markdown/generator.py", line 47, in to_markdown
    spec = Spec.from_dict(spec_data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_core/spec/paths.py", line 56, in from_dict
    validator.validate(data, spec_url=spec_url)
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_spec_validator/validation/proxies.py", line 27, in validate
    for err in validator.iter_errors(instance, spec_url=spec_url):
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_spec_validator/validation/decorators.py", line 22, in wrapper
    for err in errors:
               ^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_spec_validator/validation/validators.py", line 89, in iter_errors
    yield from self.schema_validator.iter_errors(instance)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<attrs generated init jsonschema.validators.create.<locals>.Validator>", line 5, in __init__
    self.__attrs_post_init__()
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema/validators.py", line 216, in __attrs_post_init__
    self.resolver = RefResolver.from_schema(
                    ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema/validators.py", line 772, in from_schema
    return cls(base_uri=id_of(schema), referrer=schema, *args, **kwargs)  # noqa: B026, E501
                        ^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema/_legacy_validators.py", line 12, in id_of
    if schema is True or schema is False or "$ref" in schema:
                                            ^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_spec_validator/schemas/utils.py", line 28, in get_schema_content
    content, _ = get_schema(version)
                 ^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/openapi_spec_validator/schemas/utils.py", line 24, in get_schema
    return FilePathReader(schema_path_full).read()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema_spec/readers.py", line 37, in read
    return all_urls_handler(uri), uri
           ^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema_spec/handlers/file.py", line 45, in __call__
    return self._open(uri)
           ^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema_spec/handlers/urllib.py", line 18, in _open
    return super().__call__(fh)
           ^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/site-packages/jsonschema_spec/handlers/file.py", line 41, in __call__
    parsed_url = urlparse(uri)
                 ^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/urllib/parse.py", line 394, in urlparse
    url, scheme, _coerce_result = _coerce_args(url, scheme)
                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/urllib/parse.py", line 133, in _coerce_args
    return _decode_args(args) + (_encode_result,)
           ^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/urllib/parse.py", line 117, in _decode_args
    return tuple(x.decode(encoding, errors) if x else '' for x in args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/urllib/parse.py", line 117, in <genexpr>
    return tuple(x.decode(encoding, errors) if x else '' for x in args)
                 ^^^^^^^^
  File "/service/mini-conda/miniconda3/envs/openapi-markdown_py312_2/lib/python3.12/tempfile.py", line 494, in __getattr__
    a = getattr(file, name)
        ^^^^^^^^^^^^^^^^^^^
AttributeError: '_io.BufferedReader' object has no attribute 'decode'