RFR: checkout: use HostedRepository instead of URI

[Robin Westberg]

On Thu, 29 Oct 2020 15:40:26 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that makes the `checkout` bot use `HostedRepository` instead of `URI` for the `from` repository.
> 
> Testing:
> - [x] Updated unit tests
> 
> Thanks,
> Erik

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/931