[ecosystem](kettle) add delete mode for kettle plugin

[JNSimba]

What problem does this PR solve?

The current Kettle component can only add new data. In some scenarios, it is necessary to delete upstream data, so a delete option is added.

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (Currently, kettle plugin does not have automatic testing, which will be added later)
    1. mvn clean package -DskipTests to compile plugin
    2. Create a new job on the kettle platform
    3. Check the delete option
    4. Test whether the data is deleted
  • 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. [doc](ecosystem) update kettle plugin add options doris-website#1347

Check List (For Reviewer who merge this PR)

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

[doris-robot]

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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?

[JNSimba]

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.

[JNSimba]

run buildall

[JNSimba]

run buildall

[github-actions]

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