[enchement](utf8)import enable_text_validate_utf8 session var (#45537)

[hubgeter]

bp #45537
Problem Summary:
When reading text format files in Hive catalog and TVF, sometimes you may encounter the exception Only support csv data in utf8 codec. I introduced a new session variable enable_text_validate_utf8 to control whether to check the utf8 format.

Release note

Introduced enable_text_validate_utf8 session variable to control whether to check the utf8 format.

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

[Thearas]

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?

[hubgeter]

run buildall

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 36.39% (9540/26218)
Line Coverage: 27.89% (78573/281710)
Region Coverage: 26.56% (40326/151825)
Branch Coverage: 23.32% (20422/87580)
Coverage Report: http://coverage.selectdb-in.cc/coverage/662ebbcd28d98b387da583d12bd6dff4a795bfec_662ebbcd28d98b387da583d12bd6dff4a795bfec/report/index.html

[hubgeter]

run buildall

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 36.38% (9538/26219)
Line Coverage: 27.89% (78571/281752)
Region Coverage: 26.56% (40336/151859)
Branch Coverage: 23.32% (20428/87608)
Coverage Report: http://coverage.selectdb-in.cc/coverage/2cb72a05d84b95ee34e15c4105527fed510805c3_2cb72a05d84b95ee34e15c4105527fed510805c3/report/index.html