Description
While executing tests for the version:v5.9.2 facing test issues,community need to update the source code:
`================================================================== test session starts ==================================================================
platform linux -- Python 3.11.2, pytest-7.4.3, pluggy-1.3.0
rootdir: /nbformat
configfile: pyproject.toml
testpaths: tests/
plugins: anyio-4.0.0
collected 189 items
tests/test_api.py ...... [ 3%]
tests/test_convert.py ..... [ 5%]
tests/test_nbformat.py ..... [ 8%]
tests/test_reader.py ... [ 10%]
tests/test_sign.py ................... [ 20%]
tests/test_validator.py ..XX.............................................. [ 46%]
tests/v1/test_json.py . [ 47%]
tests/v1/test_nbbase.py ...... [ 50%]
tests/v2/test_json.py ... [ 51%]
tests/v2/test_nbbase.py ............. [ 58%]
tests/v2/test_nbpy.py . [ 59%]
tests/v3/test_json.py ........... [ 65%]
tests/v3/test_misc.py . [ 65%]
tests/v3/test_nbbase.py ...................... [ 77%]
tests/v3/test_nbpy.py ..... [ 79%]
tests/v4/test_convert.py ...... [ 83%]
tests/v4/test_json.py ............. [ 89%]
tests/v4/test_nbbase.py .............. [ 97%]
tests/v4/test_validate.py ..... [100%]
=================================================================== warnings summary ====================================================================
../usr/local/lib/python3.11/site-packages/jupyter_core/application.py:22
/usr/local/lib/python3.11/site-packages/jupyter_core/application.py:22: DeprecationWarning: Jupyter is migrating its paths to use standard platformdirs
given by the platformdirs library. To remove this warning and
see the appropriate new directories, set the environment variable
JUPYTER_PLATFORM_DIRS=1 and then run jupyter --paths.
The use of platformdirs will be the default in jupyter_core v6
from .paths import (
-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
================================================================= slowest 10 durations ==================================================================
0.76s call tests/test_sign.py::TestNotary::test_sign_stdin
0.12s call tests/test_sign.py::TestNotary::test_invalid_db_file
0.11s call tests/test_validator.py::test_nb2[jsonschema]
0.09s call tests/test_validator.py::test_future[fastjsonschema]
0.06s call tests/test_validator.py::test_invalid_validator_raises_value_error_after_read
0.06s call tests/test_validator.py::test_future[jsonschema]
0.06s call tests/test_api.py::TestAPI::test_read
0.05s call tests/test_validator.py::test_nb3[jsonschema]
0.05s call tests/test_api.py::TestAPI::test_capture_validation_error
0.05s call tests/test_validator.py::test_nb4jupyter_metadata_timings[fastjsonschema]
================================================================ short test summary info ================================================================
XPASS tests/test_validator.py::test_should_not_mutate[fastjsonschema] In the future we want to stop warning, and raise an error
XPASS tests/test_validator.py::test_should_not_mutate[jsonschema] In the future we want to stop warning, and raise an error
======================================================= 187 passed, 2 xpassed, 1 warning in 2.81s =======================================================`
### Tasks