xcop.yml in judges-0.23.0

- old
+ new

@@ -26,9 +26,9 @@
   pull_request:
     branches:
       - master
 jobs:
   xcop:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - uses: g4s8/xcop-action@master