[skip ci] workflow使用pnpm

modules/web/package.json

@@ -2,6 +2,10 @@
   "name": "legado-web",
   "version": "1.0.0",
   "private": true,
+  "engines": {
+    "node": ">=16",
+    "pnpm": ">=8"
+  },
   "scripts": {
     "dev": "vite",
     "build": "vite build",