Use toml-test expected document validator

[yawkat]

For verifying expected parsing results, I've added a checker harness to toml-test-for-java.

[github-actions]

🧪 Code Coverage Report

Metric	Coverage	Change
Instructions	71.28%	📈 +0.000%
Branches	65.95%	📈 +0.000%

Coverage data generated from JaCoCo test results

[Copilot]

Pull request overview

This PR updates the TOML compliance “valid corpus” test harness to rely on toml-test-for-java’s expected-document validator rather than maintaining custom JSON-to-Jackson-node mapping and semantic comparison logic in this repo.

Changes:

• Replace custom expected-JSON mapping + semantic-equality checks with TomlExpectedDocumentValidator-based validation.
• Add a Jackson-specific validator adapter for parsing expected JSON and validating Java Time values.
• Bump toml-test-for-java test dependency from 0.1.0-2.2.0 to 0.2.0-2.2.0.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
toml/src/test/java/tools/jackson/dataformat/toml/ComplianceValidTest.java	Switches compliance validation to TomlExpectedDocumentValidator and adds a Jackson adapter for expected JSON + Java Time comparisons.
toml/pom.xml	Updates the toml-test-for-java test dependency to a newer version that provides the expected-document validator harness.

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