update flake.lock and flake.nix to include homebrew-siderolabs and enable auto-update for homebrew apps

modules/darwin/apps/homebrew.nix

@@ -5,6 +5,8 @@
   homebrew = {
     enable = true;
     onActivation.cleanup = "uninstall";
+    onActivation.autoUpdate = true;
+    onActivation.upgrade = true;
 
     brews = [
       "argoproj/homebrew-tap/kubectl-argo-rollouts"
@@ -12,6 +14,7 @@
       "git"
       "helm"
       "k9s"
+      "siderolabs/homebrew-tap/talosctl"
       "ansible"
     ];
     casks = [

modules/darwin/apps/nixpackages.nix

@@ -1,7 +1,5 @@
 { config, pkgs, ... }:
 
 {
-  environment.systemPackages = with pkgs; [
-
-  ];
+  environment.systemPackages = with pkgs; [  ];
 }