ci: update ubuntu version

Author: asaezper

.github/workflows/ccpp.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, ubuntu-20.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
         compiler: [gcc, clang]
     steps:
     - uses: actions/checkout@v3