fix(container): update image docker.io/jmalloc/echo-server to v0.3.4 (#561)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

kubernetes/apps/default/echo-server/app/helmrelease.yaml

@@ -27,7 +27,7 @@ spec:
       strategy: RollingUpdate
     image:
       repository: docker.io/jmalloc/echo-server
-      tag: 0.3.3
+      tag: 0.3.4
     service:
       main:
         ports: