Use http backend for state file

Hello,

Was wondering if http backend will ever be supported or if there is a way to achieve this. We are currently having gitlab as our backend for tf state files and its not clear if this is a blocker to use rover or not.

Thanks

The issue names no files, tests, or entry points. First determine whether rover currently supports Terraform's HTTP backend and how GitLab state files are configured; done means a documented supported path or a clearly scoped implementation.

Written by the indexing model from the issue text.