update python version

Author: alzheltkovskiy-hubspot

.github/workflows/pythonapp.yml

@@ -19,6 +19,6 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: 3.11
+        python-version: 3.12
     - name: Test with pytest
       run: make test