fix: Ensure role label on nodes

it is generally more pleasant to set these roles.

roles/k3s/post/tasks/main.yml

@@ -6,3 +6,10 @@
  file:
  path: /tmp/k3s
  state: absent
+
+- name: Ensure worker role on nodes
+ ansible.builtin.command:
+ cmd: "k3s kubectl label node {{ item }} node-role.kubernetes.io/worker=worker --overwrite"
+ run_once: true
+ changed_when: false
+ with_items: "{{ groups['node'] }}"