nixos/k3s: add default hash for autoDeployCharts module

Changed files
+1
nixos
modules
services
cluster
+1
nixos/modules/services/cluster/k3s/default.nix
···
hash = lib.mkOption {
type = lib.types.str;
example = "sha256-ej+vpPNdiOoXsaj1jyRpWLisJgWo8EqX+Z5VbpSjsPA=";
+
default = "";
description = ''
The hash of the packaged Helm chart. Only has an effect if `package` is not set.
The Helm chart is fetched during build time and placed as a `.tgz` archive on the