firebase-tools: Add update script

pkgs/by-name/fi/firebase-tools/package.nix

@@ -5,6 +5,7 @@
   fetchFromGitHub,
   python3,
   xcbuild,
+  nix-update-script,
 }:
 buildNpmPackage rec {
   pname = "firebase-tools";
@@ -35,6 +36,8 @@ buildNpmPackage rec {
     PUPPETEER_SKIP_DOWNLOAD = true;
   };
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     changelog = "https://github.com/firebase/firebase-tools/blob/v${version}/CHANGELOG.md";
     description = "Manage, and deploy your Firebase project from the command line";