fix: Adds traefik ingress annotation to echo-server service (#290)

so echo-server can be accessed via ingress.

cluster/apps/default/echo-server/helm-release.yaml

@@ -34,6 +34,7 @@ spec:
         external-dns/is-public: "true"
         hajimari.io/enable: "true"
         hajimari.io/icon: "video-input-antenna"
+        kubernetes.io/ingress.class: "traefik"
         traefik.ingress.kubernetes.io/router.entrypoints: "websecure"
       hosts:
         - host: "echo-server.${SECRET_DOMAIN}"