[INLONG-11028][SDK] Transform SQL support UrlEncode & UrlDecode functions

[MOONSakura0614]

Fixes #11028

Motivation

Add 2 function class: UrlEncode & UrlDecode functions and their distinct unit tests.

Modifications

Verifying this change

(Please pick either of the following options)

• This change is a trivial rework/code cleanup without any test coverage.

• This change is already covered by existing tests, such as:
  (please describe tests)

• This change added tests and can be verified as follows:

  (example:)

  • Added integration tests for end-to-end deployment with large payloads (10MB)
  • Extended integration test for recovery after broker failure

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a follow-up issue for adding the documentation

[MOONSakura0614]

@luchunliang @vernedeng @aloyszhang Sorry for demanding another review. I saw spotless process failed and recognized a useless import in a file so I redo the 'mvn spotless:apply' and re-commit.

[dockerzhang]

@MOONSakura0614 please rebase from the master branch to fix the failed workflow.

[aloyszhang]

UT failed, PTAL
TestUrlEncodeFunction.testUrlEncodeFunction:55 expected:<result=[]> but was:<result=[null]>

[MOONSakura0614]

fixed. Thank you for pointing the bug.