fix(cluster): enable cloudflare proxy on github webhook

tmpl/cluster/flux-system/webhooks/github/ingress.yaml

@@ -8,7 +8,6 @@ metadata:
     cert-manager.io/cluster-issuer: "letsencrypt-production"
     external-dns/is-public: "true"
     external-dns.alpha.kubernetes.io/target: "ipv4.${SECRET_DOMAIN}"
-    external-dns.alpha.kubernetes.io/cloudflare-proxied: "false"
 spec:
   ingressClassName: traefik
   rules: