fix lttf dashboard deploy

Author: mansona

.github/workflows/gh-pages.yml

@@ -11,6 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: mansona/lttf-dashboard@v1
         with:
           token: ${{secrets.GITHUB_TOKEN}}