meta.sr.ht: normalize init scripts
Add webhooks init script to meta.sr.ht
Add -openrc, fix sources for meta.sr.ht
Update man.sr.ht.post-upgrade Also moves alembic dependency to py3-srht
Add py3-prometheus-client to meta.sr.ht deps
Remove default alembic config It's broken anyway
Do not install example config with meta.sr.ht
Rename meta.sr.ht init script
Update meta.sr.ht to latest version
Package meta.sr.ht