Bump python from 3.8 to 3.9

Author: Smartappli

.github/workflows/publish.yaml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - name: Install dependencies
       run: |
         python3 -m pip install --upgrade pip build