Verify serverless workflow examples using the marshaller roundtrip tests developed as part of KOGITO-7118.

Include relevant examples in the marshaller round trip test suite.
See: packages/serverless-workflow-diagram-editor/sw-editor/sw-editor-kogito-app/src/test/java/org/kie/workbench/common/stunner/sw/client/selenium/SWEditorSeleniumIT.java
Examples to test - https://github.com/serverlessworkflow/specification/tree/main/examples

AC
Examples are tested and it is verified that the marshaling round trip does not corrupt the example or modifies it.