test(e2e): isolate puppeteer from vitest to prevent CI pipeline crash

tests/brochure-modal.e2e.test.ts

@@ -14,6 +14,7 @@ const BASE_URL = process.env.TEST_URL || 'http://127.0.0.1:3000';
 beforeAll(async () => {
   browser = await puppeteer.launch({
     headless: true,
+    executablePath: process.env.PUPPETEER_EXECUTABLE_PATH || process.env.CHROME_PATH || undefined,
     args: ['--no-sandbox', '--disable-setuid-sandbox'],
   });
 });