service: Add support for template mounts

Template mounts are templated from jinja2 templates to a service name
-specific directory under /srv and bind mounted inside the container.

roles/service/tasks/main.yaml

@@ -25,7 +25,7 @@
   when: service_container_mounts | length > 0
 
 - name: Main container for {{ service_name }}
-  ansible.builtin.include_role:
+  ansible.builtin.import_role:
     name: container
   vars:
     container_name: "{{ service_name }}"