man.sr.ht: normalize init scripts
Add py3-yaml to man.sr.ht dependencies
Make local redis service optional
Add extra gunicorn args to *.init
Add -openrc to man.sr.ht
Fix more indentation issues
Fix typo in man.sr.ht package
Update man.sr.ht.post-upgrade Also moves alembic dependency to py3-srht
Update man.sr.ht.init
Add man.sr.ht package