Feat: add dns_autoscaler_affinity remove in-place values

Upstream has removed affinity, and fix upgrade failing test.

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

roles/kubernetes-apps/ansible/defaults/main.yml

@@ -65,6 +65,7 @@ dns_autoscaler_cpu_requests: 20m
 dns_autoscaler_memory_requests: 10Mi
 dns_autoscaler_deployment_nodeselector: "kubernetes.io/os: linux"
 # dns_autoscaler_extra_tolerations: [{effect: NoSchedule, operator: "Exists"}]
+dns_autoscaler_affinity: {}
 
 # etcd metrics
 # etcd_metrics_service_labels:

roles/kubernetes-apps/ansible/templates/dns-autoscaler.yml.j2

@@ -48,21 +48,7 @@ spec:
         {{ dns_autoscaler_extra_tolerations | list | to_nice_yaml(indent=2) | indent(8) }}
 {% endif %}
       affinity:
-        podAntiAffinity:
-          requiredDuringSchedulingIgnoredDuringExecution:
-          - topologyKey: "kubernetes.io/hostname"
-            labelSelector:
-              matchLabels:
-                k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
-        nodeAffinity:
-          preferredDuringSchedulingIgnoredDuringExecution:
-          - weight: 100
-            preference:
-              matchExpressions:
-              - key: node-role.kubernetes.io/control-plane
-                operator: In
-                values:
-                - ""
+        {{ dns_autoscaler_affinity | to_nice_yaml(indent=2) | indent(8) }}
       containers:
       - name: autoscaler
         image: "{{ dnsautoscaler_image_repo }}:{{ dnsautoscaler_image_tag }}"