Make sure broken build breaks the presubmits

packages/@apphosting/adapter-angular/src/simple-server/bundled_server.mjs

@@ -44633,8 +44633,9 @@ var express = express$1;
 const app = express();
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path$2.dirname(__filename);
+const oneYear = 31_536_000_000;
 
-app.use(express.static(path$2.join(__dirname, "..", "browser")));
+app.use(express.static(path$2.join(__dirname, "..", "browser"), { maxAge: oneYear }));
 app.get("*", function (request, response) {
   response.sendFile(path$2.join(__dirname, "..", "browser", "index.html"));
 });

packages/@apphosting/adapter-angular/src/simple-server/server.mjs

@@ -1,3 +1,6 @@
+// *** IMPORTANT NOTE ***
+// make sure to run "npm run build" after making any changes to this file
+// changes to this file will not be reflected unless that command is run
 import express from "express";
 import path from "path";
 import { fileURLToPath } from "url";

scripts/build.js

@@ -2,4 +2,8 @@
 const { spawn } = require("child_process");
 const { lernaScopeArgs } = require("./github.js");
 
-spawn("lerna", ["run", "build", ...lernaScopeArgs], { stdio: "inherit" });
+const buildProcess = spawn("lerna", ["run", "build", ...lernaScopeArgs], { stdio: "inherit" });
+
+buildProcess.on("close", (code) => {
+  process.exit(code);
+});