I too am stuck on it with upgrade from 22.2.0 to 22.2.2, and since I have it on a shared hosting, I do not have root access to run any commands. What can I do?
Edit: I scanned my folders in NC root, and could see: config/config.php file, where the Maintenance Mode was true. I changed the same to false, then refreshed my cloud page, and it ran the upgrade without any issues other than the “circles” app giving the internal error, which I solved by renaming/deleting the app and folder.