login option for tokens

[nullfunc]

Description

Allow login to take a token to authenticate against. Used in CI (non-interactive mode) so the CI can authenticate on it's execution.

Linked Issues

addresses #2097

Checklist

• [X] I have performed a self-review of my code
• [ ] I have added appropriate tests
• [ ] I have updated the Defang CLI docs and/or README to reflect my changes, if necessary