Doing this further simplifies examples/vars.yml.

We're trying to move away from implementation-specific variables,
hoping for a clean (implementation-neutral) examples/vars.yml file.

Doing this seems more reasonable and simpler.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1480

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

Upgrade Heisenbridge (1.7.1 -> 1.8.0)

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1478

Twitter Mautrix from mattcen

.. as per the default bridge config.

Source: f848710c01/mautrix_twitter/example-config.yamll (L147)

Update Synapse Version from 1.49.1 to 1.49.2

This upgrade is technically not needed due to 1.49.1 and 1.49.2 being identical with a lone fix to Debian packaging being the only change. 

Still some might want us to be on the absolutely latest version even tho these 2 are practically identical.

ARM64 has yet to be built so this has to wait for that before merge.

Update Synapse from 1.49.0 to 1.49.1

This update fixes a sync issue that would cause some users to experience sync issues that could cause initial sync to completely fail.

missing uppercase in instagram's bot name

Mautrix twitter

added .well-known path to Caddy2 example, closes #1442

Update Element version (v1.9.7 -> v1.9.8)

Related to https://github.com/matrix-org/synapse/issues/11604

Getting an upstream fix is preferable. In any case, it's probably nice
to have this defined explicitly in our configuration. This way, people
can more easily discover that they can override the URL preview
language.

Also get rid of `--tags=update-user-password` in the
`matrix-dendrite` role, as what we had doesn't work.

We may be able to do it with some Ansible helper or something else.
For now, we'll omit this feature.

We also need to fix `--tags=register-user`. This tag is currently
defined in both the `matrix-synapse` and `matrix-dendrite` roles.

All the `matrix_s3_*` stuff happens in the `matrix-synapse` role.

If we are to have such S3 support for Dendrite, we should probably
extract it out of the `matrix-synapse` role (into a `matrix-s3` role or
`matrix-goofys`, etc.) and wire `matrix-dendrite` accordingly.

This may or may not be done in the future though. For now, I'm
cleaning things up in the `matrix-dendrite` role.

Seems like Dendrite encourages serving both the Client and Federation
API at the same port.

Coming from Synapse and how things are done there, we have separate
ports. Using separate ports probably makes matrix-corporal (etc.)
integration easier, so separating the APIs by default probably makes
sense.

Since 025a5ab5e5f6bdb3, we do a similar check in matrix-base.

Update synapse-admin to newest tagged release

Update ansible-lint version to 5.3.1

The goal is to have a single variable which tells us which homeserver
software is in use. Much simpler than having if/elif/elif checks for
variables like (`matrix_synapse_enabled` and `matrix_dendrite_enabled`, etc.)
everywhere.