`resultYAML` is missing `kubenix/hash` label

Caused because the attrs in `config.kubernetes.objects` don't hold the hash label. If we would use `config.kubernetes.generated` instead (like with `result`) we would need to split the returned list. Or we can split `mkHashedList` into "mkList" and "recursiveUpdate" https://github.com/hall/kubenix/blob/88329fe5b4603832c456a3f6b5720d47fb457a22/modules/k8s.nix#L554 Related to #76