Update upload-pages-artifact action to v3

Author: SayuruRehan

.github/workflows/gh-pages.yml

@@ -31,7 +31,7 @@ jobs:
         run: CI=false pnpm build
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v3
         with:
           path: './build'