Update contact email for Conversations beta participation (#16867)

Author: matejminar

docs/ai/monitoring/conversations/index.mdx

@@ -16,7 +16,7 @@ keywords:
 
 <Alert level="info">
 
-Conversations is currently in **closed beta**. To participate, reach out at [agent-monitoring@sentry.io](mailto:agent-monitoring@sentry.io).
+Conversations is currently in **closed beta**. To participate, reach out at [support@sentry.io](mailto:support@sentry.io).
 
 </Alert>