Research adding support for deploy keys

[kucharskim]

I recently needed to add a deploy key to a repo. This feature can add read-only or read-write access to a repository via SSH key. See more information at https://docs.github.com/en/authentication/connecting-to-github-with-ssh/managing-deploy-keys#deploy-keys

The article mentions that there is an API for deploy keys, so maybe each repo could have deploy keys fetched and listed public part in organization.toml as well.

Quite from the article:

You can also use the REST API to create deploy keys. For more information, see "REST API endpoints for deploy keys."

So I assume there could be a possibility to list and read deploy keys setup in a repository.