Add link to Dimension admin page

This avoids having to create a new room and to click the "Add widgets, bridges & bots" link (Formerly the four-squares-icon)

Update Coturn (4.5.2-r3 -> 4.5.2-r4)

Update prometheus (2.29.1 -> 2.29.2)

Update prometheus (2.29.1 -> 2.29.2)

mjolnir & hydrogen Minor Updates

Grafana Update 8.0.6 -> 8.1.2

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1247

Endpoint changes for Client and media API due to migration to 1.41.0

Update Synapse from 1.40.0 to 1.41.0

Fix appservice-irc version

Fix incorrect docker version tag for matrix-appservice-irc

prometheus & its exporter updates

Related to https://github.com/devture/exim-relay/pull/11

Postgres Minor Updates

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1242

Add beeper LinkedIn bridge

This bridge doesn't support SQLite anyway, so it's not necessary
to carry around configuration fields and code for migration from SQLite
to Postgres. There's nothing to migrate.

This configuration is supposed to be kept clean and not reference variables defined in other roles.

`group_vars/matrix_servers` redefines these to hook our various roles together.

Update IRC appservice to version v0.30.0

https://github.com/matrix-org/matrix-appservice-irc/releases/tag/0.30.0

Certbot update v1.18.0

Update the docker image version for mautrix-telegram

Update mautrix links