Upgrade to python3.11 in CI

Author: chriskuehl

.github/workflows/ci.yaml

@@ -7,7 +7,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: '3.10'
+          python-version: '3.11'
       - name: Install dependencies
         run: |
           pip install poetry