branch-4.1: [Exec](shuffle) random shuffle firstly use local channel to improve performance #59431

[HappenLee]

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #59431

Problem Summary: Cherry-pick #59431 to branch-4.1. For RANDOM shuffle, the exchange sink used to send blocks to channels in round-robin order one by one. This change collects local channel ids during init and prefers sending to local channels first, reducing network overhead and improving performance.

Release note

None

Check List (For Author)

• Test: No need to test (pure cherry-pick from master with minor conflict resolution on namespace)
• Behavior changed: No
• Does this need documentation: No

[hello-stephen]

Thank you for your contribution to Apache Doris.
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Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[yiguolei]

run buildall

[HappenLee]

run buildall

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.

[hello-stephen]

BE UT Coverage Report

Increment line coverage 10.00% (1/10) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	57.17% (23390/40916)
Line Coverage	41.21% (232505/564233)
Region Coverage	37.50% (184160/491157)
Branch Coverage	38.56% (82867/214922)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 100.00% (10/10) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	73.10% (29208/39956)
Line Coverage	56.78% (318681/561258)
Region Coverage	54.01% (266885/494112)
Branch Coverage	54.72% (117685/215073)

[yiguolei]

skip buildall