config(ticdc): Fix old value configuration check for maxwell protocol (#3747)

[ti-chi-bot]

This is an automated cherry-pick of #3747 and #3983

What problem does this PR solve?

close https://github.com/pingcap/ticdc/issues/3676

What is changed and how it works?

• add validate funcs
• complete protocol when create changefeed
• add tests

Check List

Tests

• Unit test

• Manual test(https://github.com/pingcap/ticdc/pull/3747#issuecomment-986629511)
  Code changes

• Has exported function/method change

• Has exported variable/fields change

Side effects

None

Related changes

• Need to cherry-pick to the release branch

Release note

Fix the problem that old value is not forced on automatically in `canal-json` and `maxwell` protocols

[ti-chi-bot]

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[Rustin170506]

/run-all-tests

[Rustin170506]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: eab536b

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (release-5.1@b075164). Click here to learn what that means.
The diff coverage is n/a.

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