nightly-7f0b7217-ls116

LinuxServer Changes:

Rebase to Alpine 3.18, deprecate armhf.

thelounge Changes:

add storage cleaner

Introduce the ability to clean up old messages from the sqlite db.
The StoragePolicy can be chosen by the user. Currently there's
two versions, delete everything based on age is the obvious.

The other is for the data hoarders among us. It'll only delete
message types which can be considered low value... Types with
a time aspect like away / back... joins / parts etc.

It tries to do that in a sensible way, so that we don't block
all other db writers that are ongoing.
The "periodically" interval is by design not exposed to the user.