Use Python 3.12

.github/workflows/ci.yml

@@ -23,9 +23,13 @@ jobs:
             - name: checkout repo content
               uses: actions/checkout@v4
 
+            - uses: actions/setup-python@v5
+              with:
+                python-version: '3.12' 
+
             - name: Install poetry
               run: |
-                  pipx install --python python3.12 poetry
+                  pipx install poetry
 
             - name: Check lock file consistency
               run: |