chore(deps): update pnpm to v8.15.8 (#149)

package.json

 {
   "name": "nuxt-hn",
   "private": true,
-  "packageManager": "pnpm@8.3.1",
+  "packageManager": "pnpm@8.15.8",
   "description": "Nuxt Hacker News",
   "author": "Evan You <yyx990803@gmail.com>",
   "contributors": [

pnpm-lock.yaml

 lockfileVersion: '6.0'
 
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
 devDependencies:
   '@nuxt/devtools':
     specifier: ^1.3.3