cargo-risczero: add passthru.updateScript

pkgs/by-name/ca/cargo-risczero/package.nix

@@ -6,6 +6,7 @@
   pkg-config,
   openssl,
   darwin,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -34,11 +35,13 @@ rustPlatform.buildRustPackage rec {
   # The tests require network access which is not available in sandboxed Nix builds.
   doCheck = false;
 
-  meta = with lib; {
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
     description = "Cargo extension to help create, manage, and test RISC Zero projects";
     mainProgram = "cargo-risczero";
     homepage = "https://risczero.com";
-    license = with licenses; [ asl20 ];
-    maintainers = with maintainers; [ cameronfyfe ];
+    license = with lib.licenses; [ asl20 ];
+    maintainers = with lib.maintainers; [ cameronfyfe ];
   };
 }