feat(metrics): End metrics beta (#11503)

Author: matejminar

includes/metrics-api-change.mdx

@@ -1,3 +1,3 @@
-<Alert level="danger" title="The Metrics beta will end on October 7th">
-Thank you for participating in our Metrics beta program. After careful consideration, we are ending the beta program and will retire the current Metrics solution on October 7th. We're actively developing a new solution that will make tracking and debugging any issues in your application easier. [Learn more](https://sentry.zendesk.com/hc/en-us/articles/26369339769883-Upcoming-API-Changes-to-Metrics).
+<Alert level="danger" title="The Metrics beta has ended on October 7th">
+Thank you for participating in our Metrics beta program. After careful consideration, we have ended the beta program and retired the current Metrics solution. We're actively developing a new solution that will make tracking and debugging any issues in your application easier. [Learn more](https://sentry.zendesk.com/hc/en-us/articles/26369339769883-Upcoming-API-Changes-to-Metrics).
 </Alert>