treewide: stub tests (#6275)

* ranger: stub tests

* alacritty: stub tests

* broot: stub tests

* zsh: stub tests

* vim-vint: stub tests

tests/modules/programs/vim-vint/basic-configuration.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, xdg, ... }:
+{ ... }:
 
 {
   programs.vim-vint = {
@@ -19,6 +19,8 @@
     };
   };
 
+  test.stubs = { vim-vint = { }; };
+
   nmt.script = ''
     assertFileContent home-files/.config/.vintrc.yaml ${
       ./basic-configuration.yaml