TEST CASE - Deploy LZ Starter to MAG, Single Subscription, GitHub Actions, Remote State Storage

[timothymeyers]

This issue is a test case for landing zone starter deployment.

This issue is for a: (mark with an x)

- [ ] bug report -> please search issues before submitting
- [X] test case
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Test steps

1. Create a Fork (in your personal GH org) for testing
2. Clone repository to your local computer (or into a Codespace)
3. Enable forked GitHub Actions in your forked repository.
4. Create required repository secrets (TBD; needs to be documented)
5. Configure your forked repo for (local|remote) terraform state storage (TBD; needs to be documented)
6. Configure your forked repo for (single|multi) subscription deployment, with subscription id(s). (TBD; needs to be documented)
7. Ensure your forked repository is configured to properly deploy to Azure Government.
8. Manually kick off provided GitHub Actions.

Other helpful details

• Document required GitHub Action Repository Secrets #47
• Document how to configure a repository for automated deployment using GitHub Actions (e.g., how to set subscription ids, regions, local/remote state storage, etc) #48