openapv: add updateScript

pkgs/by-name/op/openapv/package.nix

@@ -4,6 +4,7 @@
   writeText,
   fetchFromGitHub,
   cmake,
+  nix-update-script,
 }:
 let
   # Requires an /etc/os-release file, so we override it with this.
@@ -27,6 +28,8 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [ cmake ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     changelog = "https://github.com/AcademySoftwareFoundation/openapv/releases/tag/v${finalAttrs.version}";
     description = "Reference implementation of the APV codec";