feat: use official pause container because dockerhub sucks

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/ansible/inventory/group_vars/master/main.yaml.j2

@@ -25,6 +25,7 @@ k3s_server:
   disable-cloud-controller: true
   disable-kube-proxy: true            # Cilium uses eBPF
   write-kubeconfig-mode: "644"
+  pause-image: registry.k8s.io/pause:3.9
 {% if bootstrap_ipv6_enabled | default(false) %}
   cluster-cidr: "{% raw %}{{ cluster_cidr }},{{ cluster_cidr_v6 }}{% endraw %}"
   service-cidr: "{% raw %}{{ service_cidr }},{{ service_cidr_v6 }}{% endraw %}"

bootstrap/templates/ansible/inventory/group_vars/worker/main.yaml.j2

@@ -10,3 +10,4 @@ k3s_agent:
 {% else %}
   node-ip: "{% raw %}{{ ansible_host }}{% endraw %}"
 {% endif %}
+  pause-image: registry.k8s.io/pause:3.9