[Enhancement] add trino function map_agg (backport #66673)

[mergify]

Why I'm doing:

When using the Trino dialect, the map_agg function is not supported.

https://trino.io/docs/385/functions/aggregate.html?highlight=map_agg#map_agg

What I'm doing:

map_agg(key, value) -> map_from_arrays(array_agg(key), array_agg(value))

support the map_agg function.

Fixes #issue

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• [x ] I have checked the version labels which the pr will be auto-backported to the target branch
  • 4.0
  • 3.5
  • 3.4
  • 3.3

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Note

Adds Trino map_agg(key, value) support by rewriting to map_from_arrays(array_agg(key), array_agg(value)) and includes a unit test.

• Trino function transformation:
  • In fe/fe-core/src/main/java/com/starrocks/connector/parser/trino/ComplexFunctionCallTransformer.java:
    • Add support for map_agg(key, value) -> map_from_arrays(array_agg(key), array_agg(value)) with arg count validation.
• Tests:
  • In fe/fe-core/src/test/java/com/starrocks/connector/parser/trino/TrinoFunctionTransformTest.java:
    • Add testMapFunction asserting transformation to array_agg('key'), array_agg('value') and map_from_arrays(...).

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---

This is an automatic backport of pull request #66673 done by [Mergify](https://mergify.com).

[mergify]

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