mounter(ticdc): fix mounter add default value type unsupported (#3846)

[ti-chi-bot]

This is an automated cherry-pick of #3846

close #3793

What problem does this PR solve?

Fix default value unsupported bug cause by amend feature of tidb, related to issue #3793

Amend feature of TiDB:
As for add column DDL, if a DDL occur between a trx, the trx will not redo but commit the old schema data directly, which will cause TiCDC use new schema to parse old schema data.

What is changed and how it works?

After call "getDefaultOrZeroValue", we need to call "formatColVal" to format data from the tidb type to go supported sql type

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  Start 2 transactions:

1. Transaction 1:

Create table test_column(id int primary key);
Insert Into test_column values(1);
begin;
Insert Into test_column values(2);
// hold the trx untill Transaction 2 commit DDL
commit;

• Transaction 2:

alter table test_column add column c0 date not null;

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation
• Need to update key monitor metrics in both TiCDC document and official document

Release note

Fix mounter default date value not support

[ti-chi-bot]

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[ti-chi-bot]

@ti-chi-bot: PR needs rebase.

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[overvenus]

Merged by #4652