feat(k3s_server): install etcd-client on control plane nodes

roles/k3s_server/tasks/main.yaml

@@ -1,11 +1,12 @@
 ---
-- name: Install dependencies for apt to use repositories over HTTPS
+- name: Install dependencies
   ansible.builtin.apt:
     name: "{{ item }}"
     state: present
     update_cache: true
   loop:
     - qemu-guest-agent
+    - etcd-client
   become: true
 
 - name: See if k3s file exists