docs(mcp.md): remove 'beta'

Author: Krrish Dholakia

docs/my-website/docs/mcp.md

@@ -2,7 +2,7 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 import Image from '@theme/IdealImage';
 
-# /mcp [BETA] - Model Context Protocol
+# /mcp - Model Context Protocol
 
 LiteLLM Proxy provides an MCP Gateway that allows you to use a fixed endpoint for all MCP tools and control MCP access by Key, Team.