Update crowsnest to V5 for existing printers next time they update

[pellcorp]

Currently only new users will get V5, we should look at how we might safely trigger an upgrade to V5 for existing users

[pellcorp]

https://docs.mainsail.xyz/crowsnest/faq/upgrade-from-v4-to-v5/#migration-steps

So we could just check for v4 and do an upgrade as part of an update, not really sure, I dont want to break something that is working