add pwgen vault file and manix

roles/admin.nix

@@ -6,9 +6,11 @@ in {
   environment.systemPackages = with pkgs; [
     cryptsetup
     kubectl
+    pwgen
     whois
     unstable.kubernetes-helm
     unstable.kustomize
+    unstable.vault
 
     # podman
     conmon

roles/base.nix

@@ -11,6 +11,7 @@ in {
     borgbackup
     direnv
     fd
+    file
     fzf
     git
     gnupg
@@ -28,6 +29,7 @@ in {
     unzip
     wget
     z-lua
+    unstable.manix
     unstable.starship
     (import ../packages/neovim.nix)
   ];