chore(deps): update pnpm to v8.15.8

Author: renovate[bot]

package.json

@@ -2,7 +2,7 @@
   "name": "website",
   "type": "module",
   "private": true,
-  "packageManager": "[email protected].4",
+  "packageManager": "[email protected].8",
   "scripts": {
     "build": "nuxt build",
     "dev": "nuxt dev",