update grafana 9.4.1 -> 9.4.2

This new role also adds native Traefik support and support for other
(non-`amd64`) architectures via self-building.

Resolve Draupnir regression caused in #2508

The new version includes the `passlib` Python module.

Config was accidently changed when importing upstream changes.

update ntfy 2.1.0 -> 2.1.1

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2532

Added doc for self-signed certificates

If someone disables ACME, then they're using their own certificates
somehow. There's nothing to dump from an `acme.json` file.

We don't need these 2 roughly-the-same settings related to the
traefik-certs-dumper role.

For Traefik, it makes sense, because it's a component used by the
various related playbooks and they could step onto each other's toes
if the role is enabled, but Traefik is disabled (in that case, uninstall
tasks will run).

As for Traefik certs dumper, the other related playbooks don't have it,
so there's no conflict. Even if they used it, each one would use its own
instance (different `devture_traefik_certs_dumper_identifier`), so there
wouldn't be a conflict and uninstall tasks can run without any danger.

remove devture services in remove-all script

Update element 1.11.23 -> 1.11.24

Update grafana 9.3.6 -> 9.4.1

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2524

We don't need this anymore. No one should be using matrix-nginx-proxy
anymore.

Add example config + readme for fronting playbook's traefik with own nginx on same server

This helps people who run federation on another domain (etc.).
They should now easily be able to add a custom rule for federation traffic.

This allows people wishing to change or unset the resolver,
to have a single variable which they can toggle.

Unsetting the resolver is useful for using your own certificates
(not coming from a certificate resolver).

Update irc appservice

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2522