docs: update registry agents (#782)

Co-authored-by: benbrandt <2111074+benbrandt@users.noreply.github.com>

Author: acp-release-bot[bot]

docs/get-started/registry.mdx

@@ -888,7 +888,7 @@ Visit [the registry repository on GitHub](https://github.com/agentclientprotocol
   >
     A local, extensible, open source AI agent that automates engineering tasks
     <p class="text-xs mt-3">
-      <code>1.27.2</code>
+      <code>1.28.0</code>
     </p>
   </Card>
   <Card
@@ -941,7 +941,7 @@ Visit [the registry repository on GitHub](https://github.com/agentclientprotocol
   >
     The open source coding agent
     <p class="text-xs mt-3">
-      <code>7.0.49</code>
+      <code>7.0.50</code>
     </p>
   </Card>
   <Card