download: respect enable_dns_autoscaler when enabling dnsautoscaler (#12217)

dnsautoscaler should only be enabled when enable_dns_autoscaler is
set to true. without this, it could be enabled without any manifest
actually using it, which makes it a false signal.

Signed-off-by: Seena Fallah <seenafallah@gmail.com>

roles/kubespray_defaults/defaults/main/download.yml

@@ -897,7 +897,7 @@ downloads:
       - k8s_cluster
 
   dnsautoscaler:
-    enabled: "{{ dns_mode in ['coredns', 'coredns_dual'] }}"
+    enabled: "{{ dns_mode in ['coredns', 'coredns_dual'] and enable_dns_autoscaler }}"
     container: true
     repo: "{{ dnsautoscaler_image_repo }}"
     tag: "{{ dnsautoscaler_image_tag }}"