Add validate-settings-aws GitHub Actions workflow that will:
Test if AWS credentials specified by AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY secrets are valid and have access to the S3 bucket specified by TERRAFORM_BACKEND_S3_BUCKET variable.
Test generating arcgis.com token using the credentials specified by ARCGIS_ONLINE_PASSWORD and ARCGIS_ONLINE_USERNAME secrets.
Check that PLATFORM variable is set to "windows" or "linux".
Add
validate-settings-aws
GitHub Actions workflow that will: