Update alert banner for HashiConf

Final cleanup/closer exp date

website/data/alert-banner.js

@@ -3,11 +3,10 @@ export const ALERT_BANNER_ACTIVE = true
 // https://github.com/hashicorp/web-components/tree/master/packages/alert-banner
 export default {
   tag: 'Oct 19-21',
-  url:
-    'https://hashiconf.com/global/?utm_campaign=22Q3_WW_HASHICONFGLOBAL_EVENT-USER&utm_source=CorpBanner&utm_medium=EVT&utm_offer=EVENT-USER',
-  text: 'The countdown to HashiConf Global is on. View the full schedule now.',
-  linkText: 'View Schedule',
+  url: 'https://hashiconf.com/global/?utm_source=DocsBanner',
+  text: 'HashiConf Global is live.',
+  linkText: 'Join Now',
   // Set the expirationDate prop with a datetime string (e.g. '2020-01-31T12:00:00-07:00')
   // if you'd like the component to stop showing at or after a certain date
-  expirationDate: '2021-10-19T12:00:00-07:00',
+  expirationDate: '2021-10-21T12:00:00-07:00',
 }