cargo-component: add nix-update-script

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

@@ -5,6 +5,7 @@
   pkg-config,
   openssl,
   versionCheckHook,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -35,6 +36,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
   nativeInstallCheckInputs = [ versionCheckHook ];
   versionCheckProgramArg = "--version";
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     description = "Cargo subcommand for creating WebAssembly components based on the component model proposal";
     homepage = "https://github.com/bytecodealliance/cargo-component";