fix(build): pin pnpm version

Author: moonrailgun

package.json

@@ -2,6 +2,7 @@
   "name": "tailchat",
   "version": "1.11.12",
   "private": true,
+  "packageManager": "pnpm@8.15.8",
   "description": "",
   "main": "index.js",
   "scripts": {