Add fedora

[LaurentGoderre]

No description provided.

[tianon]

I think fedora is probably not the best one to include here 😅

Per docker-library/official-images#527, ideally we'd tell them about the oci-import support (docker-library/official-images#13968), but it's still got some rough edges that need to be ironed out before I'm comfortable suggesting more maintainers jump on it -- implementing support for oci-import here in meta is my goal and should resolve the edge cases we're aware of, but I need a less high profile image implementing it that I can test on (so I've been looking at converting either/both of cirros and busybox but each of them have some minor things that make that a little bit complex). One of the biggest downsides though (for your goals) is that we lose the SBOM generator because that's part of BuildKit. 🙃 😞

[tianon]

Now that oci-import support is in place (and seems to be working well), I'm on board with merging this one and (finally!) having a good reply for docker-library/official-images#527 😄