Fixup for f49e3f1e02.

It appears that many servers are incredibly slow, so the value was
misreported and more are online than previously estimated.

Hopefully, this makes it clearer that it's not just "public rooms"
that will now be exposed,
but rather "public rooms which are also published to the room directory".

This brings the values up-to-date as of the latest indexing run done
today. Due to a bug, the previous values were somewhat off.
The new numbers are different and actually demonstrate that the situation is
much worse than initially imagined.

Draupnir moved its repo on github from the namespace of its maintainer Gnuxie to a newly created Github Organisation the-draupnir-project and this commit reflects this.

Related to: https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2851

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2261

* Adjust to new mrb docker versioning

* Stabilze authentication

* fix lint

* Move & document mrb password usage

* Add clean cache role

* Document clean cache

* Fix lint

* Update CHANGELOG.md

* Automate access tokens

* Improve changelog

* Make use of mrb's function to fetch API tokens

* Adjust changelog

* Use ansible.builtin.file to clear directory

* Fix typo

---------

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2794

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2783

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2698
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2700

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2621

See #2529

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2515

The variable was necessary when multiple playbooks could have
potentially tried to manage a shared `devture-traefik.serivce` systemd service
and shared `/devture-traefik` directory.

Since adcc6d9723086f65f1a72, we use our own `/matrix/traefik`
(`matrix-traefik.service`) installation and no conflicts can arise.
It's safe to always enable the role, just like we do with all the other roles.

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

Fix typo in changelog

The newly extracted role also has native Traefik support,
so we no longer need to rely on `matrix-nginx-proxy` for
reverse-proxying to Ntfy.

The new role uses port `80` inside the container (not `8080`, like
before), because that's the default assumption of the officially
published container image. Using a custom port (like `8080`), means the
default healthcheck command (which hardcodes port `80`) doesn't work.
Instead of fiddling to override the healthcheck command, we've decided
to stick to the default port instead. This only affects the
inside-the-container port, not any external ports.

The new role also supports adding the network ranges of the container's
multiple additional networks as "exempt hosts". Previously, only one
network's address range was added to "exempt hosts".

This also updates `docs/configuring-playbook-own-webserver.md`,
trying to make it up-to-date with all recent changes.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2480

Referenced here: 06f5be4fa5 (r100414988)

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2375

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2451

Related to 4c9f96722f

This helps large deployments which need to open up thousands of ports
(matrix_coturn_turn_udp_min_port, matrix_coturn_turn_udp_min_port)

On a test VM, opening 1k ports takes 17 seconds for Docker to "publish"
all of these ports (setting up forwarding rules with the firewall, etc),
so service startup and shutdown take a long amount of time.

If host-networking is used, there's no need to open any ports at all
and startup/shutdown can be quick.

Inspired by: https://www.rtcsec.com/article/cve-2020-26262-bypass-of-coturns-access-control-protection/

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2227

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2386

This role is usable on its own and it's not tied to Matrix, so
extracting it out into an independent role that we install via
ansible-galaxy makes sense.

This also fixes the confusion from the other day, where
`matrix_postgres_*` had to be renamed to `devture_postgres_*`
(unless it was about `matrix_postgres_backup_*`).
We now can safely say that ALL `matrix_postgres_*` variables need to be
renamed.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2305