Trying to fix github actions with py 3.11

.github/workflows/pythonapp.yml

@@ -9,17 +9,17 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python 3.9
+    - name: Set up Python 3.11
       uses: actions/setup-python@v1
       with:
-        python-version: 3.9
+        python-version: 3.11
     - name: Install dependencies
       run: |
         # work around a pip issue with extras_require: https://github.com/pypa/pip/issues/8323
         python -m pip install -U "pip @ git+https://github.com/pypa/pip.git"
         python -m pip install --upgrade pip
         python -m pip install .[all]
-        python -m pip install nbmake==0.10 pytest-xdist line_profiler  # add'l packages for notebook tests.
+        python -m pip install nbmake pytest-xdist line_profiler  # add'l packages for notebook tests.
     - name: Lint with flake8 for pull requests
       if: github.event_name == 'pull_request'
       run: |