[Website] Update alert banner (#9361)

* Update alert banner

* Update expiration date for banner

website/data/alert-banner.js

@@ -2,11 +2,12 @@ export const ALERT_BANNER_ACTIVE = true
 
 // https://github.com/hashicorp/web-components/tree/master/packages/alert-banner
 export default {
-  tag: 'Announcing',
-  url: 'https://www.hashicorp.com/blog/announcing-general-availability-of-hashicorp-consul-1-9',
-  text: 'HashiCorp Consul 1.9 is now Generally Available (GA) .',
-  linkText: 'Learn more',
+  tag: 'Webinar',
+  url:
+    'https://www.hashicorp.com/events/webinars/an-introduction-to-federation-on-hcs',
+  text: 'An Introduction to Federation on HCS',
+  linkText: 'Register 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: null,
+  expirationDate: '2020-12-17T12:00:00-05:00',
 }