rpm-ostree has a WIP PR to add countme support: https://github.com/coreos/rpm-ostree/pull/2372/files

To count those requests, we'll need to make COUNTME_LOG_RE match rpm-ostree's requests:

• Match HEAD requests as well as GET
• Match User-Agent strings that start with rpm-ostree

If we want to be able to correctly count those requests, we'll need to be able to tell them apart from DNF requests. For now we can probably rely on the os_variant field being coreos or silverblue, but the Correct Solution would probably be to keep the User-Agent product field in our data. But that's gonna be a different issue.