Make FOSSA NOTICE available on failure

The generated NOTICE file, from the fossa-check-notice phase, is used to see if the committed one is up to date. When it isn't, that means that the attributions are out of date for the project. The developer should re-run the fossa NOTICE generation and apply it.

It would be way convenient to make the generated NOTICE available for the developer. That way, they wouldn't have to have the FOSSA CLI or configure it -- they could simply review the one that was generated during the pipeline, then commit it. It is included in the artifacts output, but only for success cases (and it isn't very useful on success).

Instead, make it available when the job fails.