* Add a global config option for Docker network MTU

* Upgrade systemd_docker_base (v1.2.0-0 -> v1.3.0-0)

The new version includes `devture_systemd_docker_base_container_networks_driver_options`
due to 3cc7d12396

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3502

* Switch from passing matrix_playbook_docker_network_mtu to respecting devture_systemd_docker_base_container_networks_driver_options

Related to:
- 3cc7d12396
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3502

* Update all roles to versions that respect `devture_systemd_docker_base_container_networks_driver_options`

---------

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

Supersedes https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3539

Related to https://github.com/metio/matrix-alertmanager-receiver/pull/42

synapse-admin v0.10.3-etke14: bulk registration works again, add ability to change avatars

Update joseluisq/static-web-server Docker tag to v2.33.0

1.3.0 fails to work against the new Synapse (v1.115.0) image.
See: https://github.com/matrix-org/synapse-s3-storage-provider/pull/114

Related to: https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3535

Update ghcr.io/element-hq/synapse Docker tag to v1.115.0

Seems like `default` is not a supported value and will not
make the bridge autoconfigure itself with the correct prefix anymore.

A value of `default` would be taken literally.

f9705b3323 reworked the configuration and missed wiring
these to the existing variables.

Update maintenance-upgrading-services.md

We'be already been going against upstream defaults and have been
enabling backfilling for a few other bridges (Messenger, Instagram, Telegram, Twitter).

Now I'm enabling backfilling by default for the remaining ones, for
consistency.

Related to:
- https://github.com/mautrix/gmessages/releases/tag/v0.5.0
- https://mau.fi/blog/2024-09-mautrix-release/

It seems like the new version does not support a `/metrics` endpoint.
We skip keep the Ansible variables, but they're not doing anything.

Related to:
- https://github.com/mautrix/meta/releases/tag/v0.4.0
- https://mau.fi/blog/2024-09-mautrix-release/

It seems like the new version does not support a `/metrics` endpoint.
We skip keep the Ansible variables, but they're not doing anything.

While working on upgrading the Meta bridges to bridgev2, I've noticed
that {% raw %} and {% endraw %} on lines like that (immediately
preceding `username_template` may cause YAML indentation issues.

Update dock.mau.dev/mautrix/signal Docker tag to v0.7.1

Update dock.mau.dev/mautrix/slack Docker tag to v0.1.1

Update ajbura/cinny Docker tag to v4.2.1

Synapse-Admin: Add UI option to block deleted rooms from being rejoined

* Added an example of fronting the playbook's integrated Traefik reverse-proxy with the existing Caddy container (not the `apt-get` or `yum` installed Caddy).  Helpful for folks who have an existing server with a Caddy container already serving multiple applications.

* Update examples/reverse-proxies/caddy2-in-container/README.md

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

* Update examples/reverse-proxies/caddy2-in-container/README.md

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

* Update examples/reverse-proxies/caddy2-in-container/README.md

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

* Code formatted, linted with yamllint

* README.md updated

* docs/configuring-playbook-own-webserver-caddy.md removed

---------

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

Update matrixdotorg/dendrite-monolith Docker tag to v0.13.8

Update matrixdotorg/mjolnir Docker tag to v1.7.0

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3369

Ref: https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3521

* fix synapse-admin image prefix

* fix typo

add missing prefix to synapse-admin version

Related to: https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3519

* switch to synapse-admin fork

* Fix typo

* Close unclosed ) and reword sentence

---------

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

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3518
- https://github.com/hifi/heisenbridge/issues/294

With this patch, when `matrix_heisenbridge_path_prefix` is the default
one we use (`/heisenbrdige`), URLs like this are constructed:

https://matrix.DOMAIN/heisenbridge/_heisenbridge/media/SERVER_NAME/MEDIA_ID/CHECKSUM/FILENAME

If `matrix_heisenbridge_path_prefix` is set to `/`, URLs like this are constructed:

https://matrix.DOMAIN/_heisenbridge/media/SERVER_NAME/MEDIA_ID/CHECKSUM/FILENAME

Our Traefik labels support handling both cases correctly.

Add temp suffix for container name to avoid conflict

Update ajbura/cinny Docker tag to v4.2.0

Update vectorim/element-web Docker tag to v1.11.77

Update ghcr.io/etkecc/honoroit Docker tag to v0.9.26