sr.ht-uacme: add link to relevant ticket

sr.ht-uacme: add workaround for user/group issue

sr.ht-uacme: correct mode of /etc/ssl/uacme

sr.ht-uacme: set owner of /etc/ssl/uacme

sr.ht-uacme: correct user/group names

sr.ht-uacme: new package