odin2: add updateScript

pkgs/by-name/od/odin2/package.nix

@@ -15,6 +15,7 @@
   libXrandr,
   libGL,
   gcc-unwrapped,
+  nix-update-script,
 }:
 
 stdenv.mkDerivation rec {
@@ -78,6 +79,8 @@ stdenv.mkDerivation rec {
     cp -r CLAP/Odin2.clap $out/lib/clap
   '';
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Odin 2 Synthesizer Plugin";
     homepage = "https://thewavewarden.com/odin2";