If `FASTLANE_SESSION` is invalid or missing xodes commands should fail when using `--use-fastlane-auth`

[marc-48k]

IMHO if FASTLANE_SESSION is invalid or missing xcodes install --use-fastlane-auth should fail fail early as opposed to falling back to Apple ID login.

xcodes install 16.3 --use-fastlane-auth

FASTLANE_SESSION not set
Apple ID:

I would argue this is not only more predictable behaviour but it's also more CI friendly as invalid session tokens can cause a CI pipeline to simply freeze indefinitely waiting for user interaction.