Switch to Ubuntu 24.04 and update Python versions in CI

Author: flashcode

.github/workflows/ci.yml

@@ -8,15 +8,18 @@ jobs:
 
   build:
 
-    name: ${{ matrix.python-version }}
-    runs-on: ubuntu-22.04
     strategy:
       matrix:
+        os:
+          - ubuntu-24.04
         python-version:
-          - "3.7"
-          - "3.8"
           - "3.9"
           - "3.10"
+          - "3.11"
+          - "3.12"
+
+    name: Python ${{ matrix.python-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
 
     steps: