Update push.yml

Author: pvinis

.github/workflows/push.yml

@@ -14,7 +14,7 @@ jobs:
           node-version: '16'
 
       - name: ⬆️ Upload output
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ github.sha }}
           path: ./**