Downloading artifacts does not work on private repos

Example: https://github.com/omsf/omsf-directory/actions/runs/16154164563/job/45592594837#step:2:10

Potential solution: https://www.reddit.com/r/github/comments/1gqf0dm/unable_to_download_artifacts_resource_not/

We will need to test this out and add some docs for how to handle this case.