Fix ansible role in freehold repo

[avnes]

• [x] Turn everything from line 102 down into working Ansible tasks. Ref: https://github.com/avnes/freehold/blob/main/ansible/roles/ansible-role-freehold/tasks/main.yml#L102
• [x] Automate CoreDNS setup mentioned in https://github.com/avnes/freehold/blob/main/README.md
• [x] Test role with poetry run ansible-playbook --inventory ansible/inventory/hosts.yaml ansible/playbook.yaml --check

[avnes]

Role has now been fixed, and have passed molecule test.