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.

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

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.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1461

1472958e25 reverted some of the v3 changes. I'm not sure why. Running the `workers-doc-to-yaml.sh` script now puts them back 🤷‍♂️.

Learn more here: https://github.com/matrix-org/synapse/releases/tag/v1.47.1

We had to remove UID/GID environment variables that we used to pass
to the Synapse container, because it was causing a problem after
https://github.com/matrix-org/synapse/pull/11209

We were using both `--user` and UID/GID environment variables until now.

1f196f59cb

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1397
and https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1399

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1397

Until now, we were leaving services "enabled"
(symlinks in /etc/systemd/system/multi-user.target.wants/).

We clean these up now. Broken symlinks may still exist in older
installations that enabled/disabled services. We're not taking care
to fix these up. It's just a cosmetic defect anyway.

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1287
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1288

.. but does it in a more complete way

Synapse 1.41.1 Patches 2 exploits that can reveal information about rooms an user is not supposed to have access to information about.

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

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1225

https://github.com/matrix-org/synapse/releases/tag/v1.37.1

Should have been part of 9daeb39710

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1108