Fix the 'Save the existing K3s token if needed' task (#503)

      when:

        - token is not defined

        - inventory_hostname == groups[server_group][0] or ansible_host == groups[server_group][0]

      ansible.builtin.command: cat /var/lib/rancher/k3s/server/node-token | cut -d':' -f4

      ansible.builtin.command: cut -d':' -f4 /var/lib/rancher/k3s/server/node-token

      register: k3s_upgrade_old_token

      changed_when: false