By default, swarm services use ingress mode port publishing, which is
not ideal for traefik (it breaks IPv6 ingress and there is no need to
load-balance traffic between multiple traefik instances or to route it
from multiple swarm nodes)
This PR switches traefik's port publishing mode to `host` for all of
its exposed ports as well as:
* change traefik's update order to stop-first (there cannot be multiple
containers exposing the same port when using host-mode publishing)
* use `endpoint_mode: dnsrr` instead of the default `vip`
* remove all overrides from `compose.host.yml`, leaving the file empty
for backwards compatibility
/!\ This is a breaking change
Closes: #52
* [x] I have deployed and tested my changes
* [x] I have added a [release note entry](https://docs.coopcloud.tech/maintainers/upgrade/#creating-new-release-notes)
Reviewed-on: coop-cloud/traefik#88
Reviewed-by: p4u1 <p4u1@noreply.git.coopcloud.tech>
Reviewed-by: decentral1se <decentral1se@noreply.git.coopcloud.tech>
Co-authored-by: mirsal <mirsal@mirsal.fr>
Co-committed-by: mirsal <mirsal@mirsal.fr>
