Add step to change directory before building

Author: fallow64

.github/workflows/nextjs.yml

@@ -44,6 +44,8 @@ jobs:
           cache: "pnpm"
       - name: Install dependencies
         run: pnpm install
+      - name: Change Directory
+        run: cd website
       - name: Build with Next.js
         run: |
           pnpm run build