Fix most producer tests in streaming.connectors.psc by calling super.…

…snapshotState() instead of supersSnapshotState(); table API and some checkpoint migration tests remaining

psc-flink/src/main/java/com/pinterest/flink/streaming/connectors/psc/FlinkPscProducer.java

@@ -1158,7 +1158,7 @@ private void flush(FlinkPscProducer.PscTransactionState transaction) throws Flin
 
     @Override
     public void snapshotState(FunctionSnapshotContext context) throws Exception {
-        supersSnapshotState(context);
+        super.snapshotState(context);
 
         nextTransactionalIdHintState.clear();
         // To avoid duplication only first subtask keeps track of next transactional id hint.