Update jsonschema requirement from 0.28 to 0.43

[dependabot]

Updates the requirements on jsonschema to permit the latest version.

Release notes

Sourced from jsonschema's releases.

[Python] Release 0.43.0

Added

• validator_cls_for(schema) function to detect and return the appropriate validator class for a schema.

Fixed

• anyOf, format, unevaluatedProperties, and unevaluatedItems now correctly collect annotations per spec.

Performance

• Optimize pattern and patternProperties for ^(a|b|c)$ alternations via linear array scan.
• Optimize ^\S*$ patterns by replacing regex with a direct ECMA-262 whitespace check.

Changelog

Sourced from jsonschema's changelog.

[0.43.0] - 2026-02-28

Performance

• Optimize pattern and patternProperties for ^(a|b|c)$ alternations via linear array scan.
• Optimize ^\S*$ patterns by replacing regex with a direct ECMA-262 whitespace check.

Fixed

• anyOf, format, unevaluatedProperties, and unevaluatedItems now correctly collect annotations per spec.

[0.42.2] - 2026-02-26

Fixed

• SWAR digit parser accepted bytes :–? (0x3A–0x3F) as valid digits during date, time, and date-time format validation, potentially allowing malformed values to pass.

Performance

• Extend pattern prefix optimization to handle escaped slashes (^\/) and exact-match patterns (^\$ref$).
• Specialize enum for cases when all variants are strings.

[0.42.1] - 2026-02-17

Performance

• Reduce dynamic dispatch overhead for non-recursive $ref resolution.
• Cache ECMA regex transformations during format: "regex" validation.

[0.42.0] - 2026-02-14

Added

• JsonType::as_str method for zero-allocation type name access.
• ValidationErrorKind::keyword is now public.
• tls-ring feature flag to opt into using ring as the TLS crypto provider instead of the default aws-lc-rs. #997
• CLI: Support YAML (.yaml/.yml) instance files in text output mode. #988

Changed

• BREAKING: Default TLS crypto provider switched back to aws-lc-rs. Users who need ring can opt in via the tls-ring feature flag. This resolves potential conflicts with other libraries using aws-lc-rs. #997

Fixed

• Panic when validating $ref targets that resolve to boolean schemas.

Performance

• Cache formatted schema locations with OnceLock to avoid repeated formatting during evaluate().

... (truncated)

Commits

• 4fa092d chore(ruby): Release 0.43.0
• 2d01b4d chore(python): Release 0.43.0
• 786fb21 chore(rust): Release 0.43.0
• 81007ff feat: validator_cls_for to detect and return the appropriate validator clas...
• b000137 perf: More pattern optimizations
• e87e368 fix: anyOf, format, unevaluatedProperties, and unevaluatedItems now c...
• 269dd0b test(python): Annotation test harness for JSON Schema Test Suite
• 44f18a3 docs: Clarify draft autodetection docs
• f87e2e6 build(deps): bump actions/download-artifact from 7 to 8
• 326c170 build(deps): bump actions/upload-artifact from 6 to 7
• Additional commits viewable in compare view

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