Use v3

Author: mimorisuzuko

.github/workflows/nextjs.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Build with Next.js
         run: bun run build
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
         with:
           path: ./docs