Update nextjs.yml

Author: awakesid

.github/workflows/nextjs.yml

@@ -77,7 +77,7 @@ jobs:
       - name: Static HTML export with Next.js
         run: ${{ steps.detect-package-manager.outputs.runner }} next export
       - name: Upload build artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: nextjs-build
           path: ./out