[FLINK-37331][tests] Add comprehensive data type coverage tests for new MysqlSource implementation

[rankocloud]

The new implementation of MysqlSource lacks the full type test cases. We should add them to verify it can work well in the new implementation. I add the following test cases in MySqlSourceITCase:

1. testFullTypesWithRowDataFormat
2. testFullTypesWithJsonFormatIncludeSchema
3. testFullTypesWithJsonFormatExcludeSchema
4. testFullTypesWithJsonFormatWithNumericDecimal

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity for 120 days. It will be closed in 60 days if no further activity occurs.

[github-actions[bot]]

This pull request has been closed because it has not had recent activity. You could reopen it if you try to continue your work, and anyone who are interested in it are encouraged to continue work on this pull request.