ci: use ubuntu 24.04

Move away from old ubuntu 20.04 and update to 24.04.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

Author: nashif

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ concurrency:
 jobs:
   build:
     name: Build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
     - name: Checkout