nvim: install Go plugin from pkgs-unstable

Makes navigation work

shared/home/default.nix

@@ -143,12 +143,11 @@ in {
           vimAlias = true;
           vimdiffAlias = true;
           defaultEditor = true;
-          plugins = with pkgs.vimPlugins;
-            lib.mkMerge [
-              [fugitive]
+          plugins = lib.mkMerge [
+            [pkgs.vimPlugins.fugitive]
             (lib.mkIf devTools [
-                vim-go
-                zig-vim
+              pkgs.pkgs-unstable.vimPlugins.vim-go
+              pkgs.vimPlugins.zig-vim
             ])
           ];
           extraConfig = builtins.readFile ./vimrc;