Setting up MX Puppet Skype bridging (optional, removed)

🪦 The playbook used to be able to install and configure mx-puppet-skype, but no longer includes this component, because it has been broken and unmaintained for a long time.

The playbook used to be able to install and configure go-skype-bridge as alternative to this bridge, but no longer includes this component, because Skype has been discontinued since May 2025.