Update dependency jsonschema to v4.20.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
jsonschema (changelog)	==4.17.3 -> ==4.20.0

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Release Notes

python-jsonschema/jsonschema (jsonschema)

v4.20.0

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• Properly consider items (and properties) to be evaluated by unevaluatedItems (resp. unevaluatedProperties) when behind a $dynamicRef as specified by the 2020 and 2019 specifications.
• jsonschema.exceptions.ErrorTree.__setitem__ is now deprecated.
  More broadly, in general users of jsonschema should never be mutating objects owned by the library.

v4.19.2

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• Fix the error message for additional items when used with heterogeneous arrays.
• Don't leak the additionalItems keyword into JSON Schema draft 2020-12, where it was replaced by items.

v4.19.1

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• Single label hostnames are now properly considered valid according to the hostname format.
  This is the behavior specified by the relevant RFC (1123).
  IDN hostname behavior was already correct.

v4.19.0

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• Importing the Validator protocol directly from the package root is deprecated.
  Import it from jsonschema.protocols.Validator instead.
• Automatic retrieval of remote references (which is still deprecated) now properly succeeds even if the retrieved resource does not declare which version of JSON Schema it uses.
  Such resources are assumed to be 2020-12 schemas.
  This more closely matches the pre-referencing library behavior.

v4.18.6

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• Set a jsonschema specific user agent when automatically retrieving remote references (which is deprecated).

v4.18.5

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• Declare support for Py3.12

v4.18.4

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• Improve the hashability of wrapped referencing exceptions when they contain hashable data.

v4.18.3

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• Properly preserve applicable_validators in extended validators.
  Specifically, validators extending early drafts where siblings of $ref were ignored will properly ignore siblings in the extended validator.

v4.18.2

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• Fix an additional regression with the deprecated jsonschema.RefResolver and pointer resolution.

v4.18.1

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• Fix a regression with jsonschema.RefResolver based resolution when used in combination with a custom validation dialect (via jsonschema.validators.create).

v4.18.0

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This release majorly rehauls the way in which JSON Schema reference resolution is configured.
It does so in a way that should be backwards compatible, preserving old behavior whilst emitting deprecation warnings.

• jsonschema.RefResolver is now deprecated in favor of the new referencing library <https://github.com/python-jsonschema/referencing/>_.
  referencing will begin in beta, but already is more compliant than the existing $ref support.
  This change is a culmination of a meaningful chunk of work to make $ref resolution more flexible and more correct.
  Backwards compatibility should be preserved for existing code which uses RefResolver, though doing so is again now deprecated, and all such use cases should be doable using the new APIs.
  Please file issues on the referencing tracker if there is functionality missing from it, or here on the jsonschema issue tracker if you have issues with existing code not functioning the same, or with figuring out how to change it to use referencing.
  In particular, this referencing change includes a change concerning automatic retrieval of remote references (retrieving http://foo/bar automatically within a schema).
  This behavior has always been a potential security risk and counter to the recommendations of the JSON Schema specifications; it has survived this long essentially only for backwards compatibility reasons, and now explicitly produces warnings.
  The referencing library itself will not automatically retrieve references if you interact directly with it, so the deprecated behavior is only triggered if you fully rely on the default $ref resolution behavior and also include remote references in your schema, which will still be retrieved during the deprecation period (after which they will become an error).
• Support for Python 3.7 has been dropped, as it is nearing end-of-life.
  This should not be a "visible" change in the sense that requires-python has been updated, so users using 3.7 should still receive v4.17.3 when installing the library.
• On draft 2019-09, unevaluatedItems now properly does not consider items to be evaluated by an additionalItems schema if items is missing from the schema, as the specification says in this case that additionalItems must be completely ignored.
• Fix the date format checker on Python 3.11 (when format assertion behavior is enabled), where it was too liberal (#​1076).
• Speed up validation of unevaluatedProperties (#​1075).

Deprecations

• jsonschema.RefResolver -- see above for details on the replacement
• jsonschema.RefResolutionError -- see above for details on the replacement
• relying on automatic resolution of remote references -- see above for details on the replacement
• importing jsonschema.ErrorTree -- instead import it via jsonschema.exceptions.ErrorTree
• importing jsonschema.FormatError -- instead import it via jsonschema.exceptions.FormatError

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