Update jsonschema requirement from 0.28 to 0.42

[dependabot]

Updates the requirements on jsonschema to permit the latest version.

Release notes

Sourced from jsonschema's releases.

[Python] Release 0.42.1

Performance

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

Packaging

• Exclude rust-toolchain.toml from wheels. #1012

Changelog

Sourced from jsonschema's changelog.

[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().

[0.41.0] - 2026-02-04

Performance

• Replace regex-based uri-template format validation with a hand-rolled RFC 6570 parser.
• Specialize items keyword for simple type schemas ({"type": "string"}, {"type": "number"}, etc.) to eliminate dynamic dispatch overhead.
• Precompute regex matches on known properties.
• Faster unevaluatedProperties validation via O(1) property lookup and short-circuit oneOf evaluation.
• Use HashMap for large set of properties.
• Lower HashMap threshold from 40 to 15 properties for faster property lookups.

[0.40.2] - 2026-01-30

Changed

• Exclude internal tracker field from ValidationError Debug output.
• Switch HTTP client TLS crypto backend from aws-lc-rs to ring to simplify building from source on some Linux distributions. #957

Fixed

• type: integer validation in Draft 4 now correctly accepts large integers outside the i64/u64 range when arbitrary-precision feature is enabled.

... (truncated)

Commits

• 9ea8fe0 chore(ruby): Release 0.42.1
• 283f8ca chore(python): Release 0.42.1
• b1584ef chore(rust): Release 0.42.1
• cc885c5 chore(python): Exclude rust-toolchain.toml from wheels
• fb48493 perf: Cache ECMA regex transformations during format: "regex" validation
• e385dc9 perf: Metaschema validation benchmarks
• 3a0e590 build(deps): update serde-saphyr requirement from 0.0.18 to 0.0.19
• ab25304 perf: Reduce dynamic dispatch overhead for non-recursive $ref resolution
• 61b2ab4 docs(ruby): Update readme
• 7b78864 build(deps): bump werkzeug from 2.2.3 to 3.1.5 in /crates/jsonschema-py
• Additional commits viewable in compare view

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[dependabot]

Superseded by #102.