Update jsonschema to 4.26.0

[pyup-bot]

This PR updates jsonschema from 4.23.0 to 4.26.0.

Changelog

4.26.0

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* Decrease import time by delaying importing of ``urllib.request`` (1416).

4.25.1

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* Fix an incorrect required argument in the ``Validator`` protocol's type annotations (1396).

4.25.0

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* Add support for the ``iri`` and ``iri-reference`` formats to the ``format-nongpl`` extra via the MIT-licensed ``rfc3987-syntax``.
They were alread supported by the ``format`` extra. (1388).

4.24.1

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* Properly escape segments in ``ValidationError.json_path`` (139).

4.24.0

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* Fix improper handling of ``unevaluatedProperties`` in the presence of ``additionalProperties`` (1351).
* Support for Python 3.8 has been dropped, as it is end-of-life.

Links

• PyPI: https://pypi.org/project/jsonschema
• Changelog: https://data.safetycli.com/changelogs/jsonschema/