fix(nix): reorder ssh-tresor in system packages list

- Corrected the position of `ssh-tresor` in the package list for consistency.
- Ensures proper alphabetical ordering in the services configuration.

modules/nixos/services/base/default.nix

@@ -66,8 +66,8 @@ in
           rrsync
           s-tui
           sbctl
-          ssh-tresor
           sops
+          ssh-tresor
           strace
           tmux
           unixtools.net-tools