[Refactor] Move table function sink out of Exec

[alvin-phoenix-ai]

Why I'm doing:

What I'm doing:

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 pr needs auto generate documentation
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 4.1
  • 4.0
  • 3.5

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[CelerData-Reviewer]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Hooray!

Reviewed commit: 45dd0394ee

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[github-actions]

[Java-Extensions Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

✅ pass : 93 / 101 (92.08%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/data_sink/external/table_function_table_sink.h	1	2	50.00%	[39]
🔵	be/src/data_sink/external/table_function_table_sink.cpp	19	24	79.17%	[49, 50, 53, 54, 55]
🔵	be/src/exec/data_sinks/table_function_table_sink_pipeline_builder.cpp	72	74	97.30%	[96, 97]
🔵	be/src/exec/data_sinks/data_sink_pipeline.cpp	1	1	100.00%	[]