[Chore](agg) adjust skew kurtosis linerhistogram group_bit symbols

[BiteTheDDDDt]

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[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?

[BiteTheDDDDt]

run buildall

[BiteTheDDDDt]

run buildall

[BiteTheDDDDt]

run buildall

[BiteTheDDDDt]

run buildall

[BiteTheDDDDt]

run buildall

[BiteTheDDDDt]

run buildall

[hello-stephen]

FE UT Coverage Report

Increment line coverage 0.00% (0/2) 🎉
Increment coverage report
Complete coverage report

[BiteTheDDDDt]

run buildall

[hello-stephen]

BE UT Coverage Report

Increment line coverage 60.47% (26/43) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	58.88% (16586/28167)
Line Coverage	47.77% (150226/314457)
Region Coverage	36.66% (112619/307160)
Branch Coverage	39.61% (49980/126183)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 86.05% (37/43) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	81.37% (22493/27644)
Line Coverage	74.07% (232916/314472)
Region Coverage	61.32% (193417/315431)
Branch Coverage	65.49% (83648/127733)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 86.05% (37/43) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	81.37% (22493/27644)
Line Coverage	74.07% (232943/314472)
Region Coverage	61.36% (193557/315431)
Branch Coverage	65.49% (83649/127733)

[github-actions]

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

[github-actions]

PR approved by anyone and no changes requested.