raycast: fix passthru.updateScript

- fixed updateScript to work with maintainers/scripts/update.nix

pkgs/os-specific/darwin/raycast/default.nix

@@ -36,8 +36,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
-  passthru = {
-    updateScript = writeShellApplication {
+  passthru.updateScript = lib.getExe (writeShellApplication {
     name = "raycast-update-script";
     runtimeInputs = [ curl jq common-updater-scripts ];
     text = ''
@@ -46,8 +45,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
       version=$(echo "$url" | jq -r '.version')
       update-source-version raycast "$version" --file=./pkgs/os-specific/darwin/raycast/default.nix
     '';
-    };
-  };
+  });
 
   meta = with lib; {
     description = "Control your tools with a few keystrokes";