Switch CI to Python 3.12

Author: rnestler

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Setup python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.12'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip