flake: disable Lix module

Since https://github.com/NixOS/nixpkgs/pull/391983 was merged in
nixos-24.11, the Lix module needs a bump as well to avoid applying that
patch twice, which breaks the build. Let's wait for an update.

flake.nix

@@ -112,7 +112,8 @@
           [
             agenix.nixosModules.default
             home-manager.nixosModules.default
-            lix-module.nixosModules.default
+            # FIXME: this is temporarily broken, will need a bump of the Lix module
+            # lix-module.nixosModules.default
             {
               nixpkgs = {
                 overlays = shared_overlays;