PHOENIX-7928 Re-baseline some missed tests

[apurtell]

Some tests that should have been updated during development were not updated. Re-baseline them.

IndexUsageIT (30), JsonFunctionsIT (1), SchemaToolExtractionIT (2), and CDCDefinitionIT (2)

[Copilot]

Pull request overview

This PR updates several integration tests’ expected outputs (“re-baselines”) to match current Phoenix behavior, particularly around DDL rendering and optimizer explain-plan rule labels.

Changes:

• Update SchemaTool extraction test expectations to match current whitespace formatting in generated DDL.
• Update explain-plan assertions to account for functional-index rule labels now emitted as matches <expr> (using prefix assertions).
• Update CDC index PK column name expectations to match current formatting (no space after :).

Reviewed changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated no comments.

File	Description
phoenix-core/src/it/java/org/apache/phoenix/schema/tool/SchemaToolExtractionIT.java	Align expected extracted index DDL formatting (LPAD expression spacing).
phoenix-core/src/it/java/org/apache/phoenix/end2end/json/JsonFunctionsIT.java	Adjust explain-plan rule assertion for JSON expression index selection.
phoenix-core/src/it/java/org/apache/phoenix/end2end/index/IndexUsageIT.java	Re-baseline multiple explain-plan rule assertions for expression/functional index usage.
phoenix-core/src/it/java/org/apache/phoenix/end2end/CDCDefinitionIT.java	Update expected CDC index PK column names to match current output formatting.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.