Upgrading CI (Python and Ubuntu versions)

Author: krulis-martin

.github/workflows/ci.yml

@@ -4,10 +4,10 @@ on: [push, pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: [3.9, 3.11]
+        python-version: [3.9, 3.12, 3.14]
 
     steps:
       - uses: actions/checkout@v2