publish a new blog: openagents (+update the mcp blog cover) (#489)

* publish a new blog: openagents

* update typos

Author: ChelseyZ

blog/en/is-mcp-already-outdated-the-real-reason-anthropic-shipped-skills-and-how-to-pair-them-with-milvus.md

@@ -4,7 +4,7 @@ title: >
  Is MCP Already Outdated? The Real Reason Anthropic Shipped Skills—and How to Pair Them with Milvus
 author: Min Yin
 date: 2025-11-19
-cover: assets.zilliz.com/skill_mcp_cover_0b12d0d95d.png
+cover: assets.zilliz.com/skill_mcp_cover_162fd27dc1.png
 tag: Tutorials
 recommend: false
 publishToMedium: true