Upgrade helm maven build plugin configuration

[jfallows]

[INFO] Use 3.13.2 as helm version
[WARNING] Registry login with `helm:push` is deprecated and will beremoved in next major version. Please use `helm-registry-login` for registry login and set `helm.push.skipLogin` to `true`. For more information see https://github.com/kokuwaio/helm-maven-plugin/issues/302
[ERROR] Login Succeeded
[INFO] Uploading /Users/jfallows/GitHub/aklivity/zilla/cloud/helm-chart/target/helm/repo/zilla-0.9.61.tgz...
[ERROR] Pushed: ghcr.io/aklivity/charts/zilla:0.9.61
[ERROR] Digest: sha256:be5386c62b49e4ae306ed4b8206c1eb283e9643f9332af33762611f62f502926