fix changelog

Author: elithrar

src/content/changelog/durable-objects/2025-04-07-durable-objects-free-tier.mdx

@@ -5,6 +5,7 @@ products:
   - durable-objects
   - workers 
 date: 2025-04-07T06:00:00Z
+hidden: true
 ---
 
 Durable Objects can now be used with zero commitment on the [Workers Free plan](/workers/platform/pricing/) allowing you to build AI agents with [Agents SDK](/agents/), collaboration tools, and real-time applications like chat or multiplayer games.