[dev] CI: bump actions/download-artifact and actions/upload-artifact actions version to v4. (#52611)

.github/workflows/mirrors.yml

@@ -26,7 +26,7 @@ jobs:
         run: bash bin/build-zip.sh
 
       - name: Upload the zip file as an artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
@@ -52,7 +52,7 @@ jobs:
           path: monorepo
 
       - name: Download WooCommerce ZIP
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: woocommerce
           path: tmp/woocommerce-build