chore(changeset): add @objectstack/plugin-pinyin-search to the fixed version group

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RMugRriiNv3nsnmLczfhuY

Author: claude

.changeset/config.json

@@ -41,6 +41,7 @@
       "@objectstack/plugin-email",
       "@objectstack/plugin-hono-server",
       "@objectstack/mcp",
+      "@objectstack/plugin-pinyin-search",
       "@objectstack/plugin-reports",
       "@objectstack/plugin-security",
       "@objectstack/plugin-sharing",