Update nextjs.yml

Author: testaco

.github/workflows/nextjs.yml

@@ -44,6 +44,7 @@ jobs:
             exit 0
       - name: Setup Node
         uses: actions/setup-node@v4
+        working-directory: ./web
         with:
           node-version: "20"
           cache: ${{ steps.detect-package-manager.outputs.manager }}