[Improve][Checkpoint] Use fixed serialVersionUID in sink state class

[hailin0]

Purpose of this pull request

[Checkpoint] Use fixed serialVersionUID in state class

Does this PR introduce any user-facing change?

No

How was this patch tested?

public class SerialUIDDemo {
    public static void main(String[] args) {
        SinkIdentifier obj = SinkIdentifier.of("a", 1);
        long uid = ObjectStreamClass.lookup(obj.getClass()).getSerialVersionUID();
        System.out.println("serialVersionUID: " + uid);
    }

}

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[hailin0]

link
#9080