chore(deps): use python 3.11.8 from now on

fix(celery): use higher CLI value for max-tasks-per-child as a defult for rcstack Will improve performance for the new hooks celery-based code

fix(cli-tools): fixed issue with CLI tools selecting node for execution for older docker

feat(redis): added --db flag to pick redis DB to connect to

docs(scaling): updates scaling section to instruct how to scale ssh and celery

fix(celery): make sure celery workers get proper hostnames set for scaling

chore(version): bumped to 5.8.0

chore(docs): release changelog for 5.7.0

chore(self-update): small logging changes for self-update output

fix(traefik): fixed bad letsencrypt acme storage path