Fix correlated subquery in HAVING cannot reference outer query column

[jonasHanhan]

Fixes #37431.

Changes proposed in this pull request:

• Merge FROM tableBinderContexts into outerTableBinderContexts before binding HAVING clause expressions
• This allows correlated subqueries in HAVING to resolve outer query table aliases (e.g., ref_0.c13)
• Aligns HAVING binding behavior with WHERE binding path
• Add unit test for HavingSegmentBinder
• Add integration tests for correlated subqueries in HAVING clause (PostgreSQL, MySQL, openGauss)

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