The distinction between `secrets.GITHUB_TOKEN` and `secrets.NPM_TOKEN` cost myself and a colleague numerous hours when we were trying to fix a GitHub Actions workflow which needed to install a private package from a different repository from our GitHub organisation.
Given the issue dedicated to this point is closed, we should include a warning here to make it more clear why `secrets.GITHUB_TOKEN` will not work when passed to `npm ci`, in the presence of private packages from other GitHub Package repositories.
