update docker mirror (#3412)

the old one was deprecated and removed

[static]

Signed-off-by: Nicu Reut <nicu.reut@digitalasset.com>

Author: nicu-da

cluster/pulumi/gha/src/dockerMirror.ts

@@ -19,7 +19,7 @@ export function installDockerRegistryMirror(): k8s.helm.v3.Release {
       version: '2.3.0',
       namespace: namespace.metadata.name,
       repositoryOpts: {
-        repo: 'https://helm.twun.io',
+        repo: 'https://twuni.github.io/docker-registry.helm',
       },
       values: {
         proxy: {