Currently CatchError definition is an object, which allows specifying anything here
However the idea is that the schema just support definitions of the form

catch:
        errors:
          with:
            type: https://serverlessworkflow.io.io/dsl/errors/types/communication
            status: 404

where elements under with: are of the same name than in error: definition, but optional