Add some sort of test that checks if any of the gitrefs are out of date

Right now, there's no reminder or warning mechanism for when there are updates on the upstream branches. There should be a dedicated way to remind us to update the commit refs.

It could be a test that is on all the time? But I don't particularly want all jobs to fail if the refs are behind. Maybe it's a job that only runs on the daily pipeline? Idk.