The SourceHut mirror for Alpine 3.20 is now available and all
third-party instances are encouraged to upgrade:

https://mirror.sr.ht/alpine/v3.20/sr.ht/

The Alpine 3.19 mirror is now unmaintained and will not receive any
further updates.

As usual, please update the upstream Alpine repositories as well in
/etc/apk/repositories and run apk upgrade -Ua when upgrading.