`matrix_synapse_federation_port_enabled` is defined like this:

```
matrix_synapse_federation_port_enabled: "{{ matrix_synapse_federation_enabled or matrix_synapse_federation_port_openid_resource_required }}"
```

Previously, people that disabled federation, but needed the `openid`
listener were running without these federation-related labels.

In this patch, we're also dropping the `not matrix_synapse_workers_enabled` condition,
because.. none of the Matrix-related labels would be applied anyway when
workers are enabled, thanks to `matrix_synapse_container_labels_matrix_related_labels_enabled`.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3127