set python version for zsh job in ci

Author: dhellmann

.github/workflows/test.yml

@@ -53,6 +53,8 @@ jobs:
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
 
       - name: Install dependencies
         run: python -m pip install tox