The `to_nice_yaml` helper will by default wrap any string YAML values on
the first space after column 80. This can in worst case yield invalid
YAML syntax. More details in Ansible's documentation here:

https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters.html#formatting-data-yaml-and-json

In short, you need to explicitly provide a custom width argument of a
high number of some kind to avoid the line wrapping.

`matrix_nginx_proxy_enabled` is usually set to false by users, this is when
the warning should be displayed.

This fixes parameters not being passed to the provisioning api

Hello, this PR should fix Hookshot container not receiving API calls with the right path because nginx proxy was stripping the /v1 from it.

to proxy url params in GET requests

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1629

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1505

using b33ea48

see also #1527