Housekeeping

Make AbastractJacksonMarshaller public so it can be used outside the
current package

Update test DB set

Signed-off-by: fjtirado <ftirados@ibm.com>

Author: fjtirado

impl/model/src/main/java/io/serverlessworkflow/impl/model/jackson/AbstractJacksonMarshaller.java

@@ -23,7 +23,7 @@
 import java.io.IOException;
 import java.io.UncheckedIOException;
 
-abstract class AbstractJacksonMarshaller<T> implements CustomObjectMarshaller<T> {
+public abstract class AbstractJacksonMarshaller<T> implements CustomObjectMarshaller<T> {
 
   @Override
   public void write(WorkflowOutputBuffer buffer, T object) {