Use ubuntu 24.04 in action ci runner

Author: jorgen

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build-linux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         platform: [x64]
@@ -18,9 +18,6 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Install Ninja
-        run: sudo apt-get update && sudo apt-get install -y ninja-build
-
       - name: Configure CMake
         run: cmake -B./build -DJSON_STRUCT_OPT_BUILD_BENCHMARKS=OFF -GNinja