vimPlugins.neotest: add dependencies

pkgs/applications/editors/vim/plugins/overrides.nix

···
     dependencies = with self; [ plenary-nvim ];
   };
 
+  neotest = super.neorg.overrideAttrs {
+    dependencies = with self; [ plenary-nvim ];
+  };
+
   neo-tree-nvim = super.neo-tree-nvim.overrideAttrs {
     dependencies = with self; [ plenary-nvim nui-nvim ];
   };