ci: update upload-artifact action to version 4

Author: MH4GF

.github/workflows/vrt.yml

@@ -41,7 +41,7 @@ jobs:
 
       - name: Upload failed screenshots
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: vrt-failed-screenshots-${{ github.sha }}
           path: web/test-results