use latest python version

Author: shemogumbe

.github/workflows/publish.yml

@@ -55,7 +55,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: 3.12
       - name: Install flit
         run: |
           pip install flit