yafc-ce: add update script passthru attribute

The default update script used by r-ryantm does not fetch the updated .NET
dependencies, which means most updates won't get an r-ryantm PR. The
`nix-update-script` *does* fetch these deps, solving the issue.

pkgs/by-name/ya/yafc-ce/package.nix

@@ -1,11 +1,18 @@
 {
-  buildDotnetModule,
   lib,
+
+  # Build
+  buildDotnetModule,
   fetchFromGitHub,
   dotnetCorePackages,
+
+  # Runtime
   SDL2,
   SDL2_image,
   SDL2_ttf,
+
+  # Updates
+  nix-update-script,
 }:
 let
   dotnet = dotnetCorePackages.dotnet_8;
@@ -39,6 +46,8 @@ buildDotnetModule (finalAttrs: {
     SDL2_image
   ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     description = "Powerful Factorio calculator/analyser that works with mods, Community Edition";
     longDescription = ''