branch-3.1:[enhancement](parquet)Optimize the performance of parquet reader when decode RLE_DICTIONARY encoding (#57208)

[hubgeter]

bp #57208
Problem Summary:
When parsing RLE_DICTIONARY encoding, the parquet reader uniformly uses memcpy. However, for INT32, INT64, etc., direct assignment is faster than memcpy.

In Parquet dictionary encoding, the actual data is not stored contiguously, resulting in very small memcpy sizes. When analyzing the implementation of memcpy, we can see that for such small sizes, __builtin_memcpy is used instead. The implementation of __builtin_memcpy essentially behaves like a series of simple assignments. You can observe the corresponding assembly code here: https://godbolt.org/z/r9Ma1ozvd.

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]

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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?

[hubgeter]

run buildall