You may need an .Renviron file in the root of the project with the following content:
QUALTRICS_API_KEY='something here'
QUALTRICS_BASE_URL='XXXX.qualtrics.com'
DATAVERSE_TOKEN='somethingelse'
DATAVERSE_SERVER='https://demo.dataverse.org'
DATAVERSE_DATASET_DOI='doi:10.70122/xxx/xxxxx'
where you should replace this with the true values. See the Qualtrics API documentation for more information. For Dataverse uploader, see https://github.com/IQSS/dataverse-uploader.
You should then set the GH Actions secrets with
gh secret set -f .Renviron
If you need to work in Codespaces, you will also need to add this to your Codespace secrets:
gh secret set -f .Renviron --user $GITHUB_REPOSITORY
then go to https://github.com/settings/codespaces and enable them for this repository (if not already done).