updated python to 3.9.13

Author: chillaq

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.9'
+          python-version: '3.9.13'
 
       - name: Install dependencies
         run: |