fix(dns): Use different upstream server

This patch changes the upstream server to quad9, as it seems that
dnsproxy doesn't support SNI for DoH or DoT Servers.

apps/k8s01/dns/dns.yaml

@@ -20,8 +20,8 @@ spec:
           image: quay.io/sheogorath/dnsproxy:0.42.2
           args:
             - /dnsproxy
-            - --upstream=https://dns.shivering-isles.com/dns-query
-            - --bootstrap=1.1.1.1
+            - --upstream=https://dns.quad9.net/dns-query
+            - --bootstrap=9.9.9.9
             - --cache-min-ttl=300
             - --cache-optimistic
           ports: