Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1771

* Add matrix-registration-bot

This adds an install and uninstall task plus helpers. The bot is disabled by default.
This commit does not include documentation, yet. In short, the bot can be enabled by adding
matrix_bot_matrix_registration_bot_enabled: true
matrix_bot_matrix_registration_bot_matrix_user_password: "verysecret"
matrix_bot_matrix_registration_bot_matrix_admin_token: "supersecret"
to the host_vars

* Change bot username to bot.matrix-registration-bot following convention

* Address smaller remarks, fix local docker build

* Switch to an env file

* Add environment variables extension for additional config

* Add documentation for the matrix-registration-bot

* Add screenshot on how to obtain admin access token

* Use bot as admin to only have one access token (bot and admin api)

* Use cleaner setting of matrix_synapse_registration_requires_token

* Use config file for cleaner more secure usage

* Delete unneeded env

* Rename vars to make usage clear

* Fix typos/wording and add notice about logging out

* Convert configuration to use |to_json

* Reorder role includes

Nothing should be after `matrix-common-after`.

`matrix-bot-matrix-registration-bot` can probably be anywhere, but it makes sense to put it next to the other `matrix-bot-*` roles.

* Minor group_vars/matrix_servers touchups

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

Slack appservice: Enable RTM by default

Comments taken from https://github.com/matrix-org/matrix-appservice-slack/blob/develop/config/config.sample.yaml

We should probably reconcile our configuration with that one and include comments for other fields as well.

It is very confusing to debug why messages only go from Matrix to Slack
but not from Slack to Matrix. RTM should be enabled by default, as
that's the recommended way to make this work.

add retires to all get_url actions

matrix-backup-borg - cleanup the .service from the systemd list

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1727
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1754
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1755
- https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/467

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1766

update synapse 1.56.0 -> 1.57.0

update honoroit 0.9.6 -> 0.9.7

* matrix-backup-borg: added option for unencrypted repo access

* matrix-backup-borg: fixed requiring password for unencrypted repos; changed variable name

* matrix-backup-borg: add unknown_unencrypted_repo_access_is_ok to config.yaml.j2

* matrix-backup-borg: cleanup comments

* matrix-backup-borg: add documentation regarding unencrypted repos

* matrix-backup-borg: add readability and ease of use to code

* matrix-backup-borg: fix wording in defaults/main.yml comment

* matrix-backup-borg: add quotes to docs

* Indicate the variable to use

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

Upgrade Telegrame bridge to 0.11.3

Increase default async time for rust-synapse-compress-state

Increase the async timeout value defaults, as larger Matrix servers need more time to complete.

Update mautrix-whatsapp 0.3.0 -> 0.3.1

matrix-backup-borg: integrate postgres backups, add extended borgmatic configuration

Update element 1.10.9 -> 1.10.10

Upgrade Hookshot (1.4.0 -> 1.5.0)

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1749

Improve borg backup instructions

Update honoroit 0.9.5 -> 0.9.6

This update brings stable threads support

Update jitsi to version 7001

Tested, works without any configuration changes.

Update coturn 4.5.2-r8 -> 4.5.2-r11

Update element 1.10.8 -> 1.10.9

This adds a variable for requiring MSC3231 token for registration

Upgrade Hookshot (1.3.0 -> 1.4.0)

https://github.com/matrix-org/matrix-hookshot/releases/tag/1.4.0

We no longer validate that there's an IP address defined.
Seems like Coturn can start without one as well, so there's no need to
require it.

If people populate `matrix_coturn_turn_external_ip_addresses` directly
to specify multiple addresses, they can leave
`matrix_coturn_turn_external_ip_address` empty.

We use the "select not equal to empty string" thing in the for loop
to avoid `matrix_coturn_turn_external_ip_address` leading to
`matrix_coturn_turn_external_ip_addresses: ['']` leading to
`external-ip=` in the Coturn configuration.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1741