fix(dns): Use Cloudflare's DNS instead of Google's DNS

.examples/docker-compose-postgres-storage/config/config.yaml

@@ -26,7 +26,7 @@ endpoints:
       - "[STATUS] == 200"
 
   - name: example-dns-query
-    url: "8.8.8.8" # Address of the DNS server to use
+    url: "1.1.1.1" # Address of the DNS server to use
     interval: 5m
     dns:
       query-name: "example.com"