TRIGGER_JOBS=enable-nextcloud

Closes: #443

Closes: #291

Closes #185

We now add the letsencrypt staging CA bundle to the trust store
and validate certs against it.

Closes #132

Ansible needs this module to be installed on the control
machine for the k8s resource.

Closes #52

On CI we still prefer to use alpine system packages
since this is much faster than installing every python
package via pip.