bump gh-action "upload-artifact" to v4

Author: zhakk-harn

.github/workflows/deploy.yml

@@ -24,7 +24,7 @@ jobs:
         run: npm run build
 
       - name: Upload production-ready build files
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: production-files
           path: ./dist