gallus,spike: set trusted user

Flake lock file updates:

• Updated input 'private':
    'git+ssh://forgejo@git.mildlyfunctional.gay/artemist/nixos-config-private?ref=unified&rev=d7c6ca3b590efb21db60ce8f37bac6426a3ea5e3' (2024-05-02)
  → 'git+ssh://forgejo@git.mildlyfunctional.gay/artemist/nixos-config-private?ref=unified&rev=92683d0a9d0efce86f7d7cbdea13444743e87a64' (2024-09-03)

flake.lock

@@ -559,11 +559,11 @@
     },
     "private": {
       "locked": {
-        "lastModified": 1714692522,
-        "narHash": "sha256-ZzGMxvunjZmSymi5IFduSk62ECRGSo4n0yUguZW67fA=",
+        "lastModified": 1725340199,
+        "narHash": "sha256-w+VsnZ9gihZv7k9Eujc5gcsjkL2O4RnZO6jxEKnqa8I=",
         "ref": "unified",
-        "rev": "d7c6ca3b590efb21db60ce8f37bac6426a3ea5e3",
-        "revCount": 45,
+        "rev": "92683d0a9d0efce86f7d7cbdea13444743e87a64",
+        "revCount": 46,
         "type": "git",
         "url": "ssh://forgejo@git.mildlyfunctional.gay/artemist/nixos-config-private"
       },

system/gallus/default.nix

@@ -18,6 +18,8 @@
     inputs.jovian.nixosModules.default
   ];
 
+  nix.settings.trusted-users = [ "@wheel" ];
+
   jovian = {
     devices.steamdeck = {
       enable = true;

system/spike/default.nix

@@ -16,6 +16,8 @@
   networking.hostName = "spike";
   system.stateVersion = "23.11";
 
+  nix.settings.trusted-users = [ "@wheel" ];
+
   home-manager.users.artemis = {
     xdg.configFile."rustybar/config.toml".text = ''
       [[tile]]