EncodingWarning issued when PYTHONWARNDEFAULTENCODING=true #1107
Description
When enabling PYTHONWARNDEFAULTENCODING, it triggers a warning in jsonschema (per PEP 597).
tests/test_scripts.py::TestNotebookDepsReader::test_one_code_block
/Users/jaraco/code/jaraco/pip-run/.tox/py/lib/python3.11/site-packages/jsonschema/validators.py:109: EncodingWarning: 'encoding' argument not specified
vocabulary = json.loads(path.read_text())
Probably that needs to be path.read_text(encoding='utf-8').