Squid merge window opening delayed

I've been working on fixing the upgrade tests that are failing across all releases and `main`. I had hoped to have already finished backporting the fixes from main to `squid` for final testing on 19.2.4 but, alas, the lab issues this weekend and today have delayed us. Therefore, I will push back the v19.2.5 window to open next week. v20.2.2 QE will also start as soon as the lab is ready. -- Patrick Donnelly, Ph.D. He / Him / His Red Hat Partner Engineer IBM, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D