Reduce Ubuntu version in CI

Author: sarcasticnature

.github/workflows/cmake_ubuntu.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-24.04]
+        os: [ubuntu-22.04]
 
     steps:
     - uses: actions/checkout@v2