[FLINK-36375][cdc-runtime] fix missing default value in AddColumnEvent/RenameColunEvent
SchemaOperator receives an AddColumnEvent, the default value will be lost when sent downstream. JIRA: https://issues.apache.org/jira/browse/FLINK-36375
@lvyanquan @yuxiqian PTAL
Thanks for @qg-lin's contribution! Seems lenientized
RenameColumnEventis also prone to this issue. Would you like to fix this in this PR?
my pleasure
Also could you please please rebase this PR with latest master branch?
Agree to separate the change of System.lineSeparator to another pr.
@qg-lin Would you like to backport this PR for branch release-3.2?