Thanks to the previous response i came across this solution that works perfectly, its a bit ugly but it does the job:

- name: optional-job-three
  depends: "(optional-job-one.Succeeded && optional-job-two.Skipped) || (optional-job-one.Skipped && optional-job-two.Succeeded) || (optional-job-one.Succeeded && optional-job-two.Succeeded)"
  templateRef:
    name: master-templater
    template: option-three-template
  arguments:
    parameters:
      - name: argument-one
        value: "{{`{{tasks.scraper.outputs.parameters.argument-one}}`}}"