update banner text

Author: siddharth0248

veda.config.js

@@ -171,7 +171,7 @@ module.exports = {
     contentId: 'gov-banner-content'
   },
   siteAlert: {
-    content: `Due to the lapse in federal government funding, the U.S. Greenhouse Gas Center is not updating this website. We sincerely regret this inconvenience.`,
+    content: `Placeholder banner text.`,
     expires: '2025-11-12T12:00:00-04:00',
     type: 'emergency',
     slim: true,