Update actions/upload-pages-artifact

Author: finnbear

.github/workflows/build.yml

@@ -55,7 +55,7 @@ jobs:
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v4
         with:
           path: './pages/dist/'
       - name: Deploy to GitHub Pages