Update CI environment

Author: nickjj

.github/workflows/ci.yml

@@ -13,10 +13,10 @@ on:
 
 jobs:
   test:
-    runs-on: "ubuntu-22.04"
+    runs-on: "ubuntu-24.04"
 
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v6"
 
       - name: "Install CI dependencies"
         run: |