Require python 3.10 for docs

Upgrade version of python for documentation.

Author: Eli

.github/workflows/build_sphinx.yml

@@ -21,10 +21,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v2
         with:
-          python-version: 3.9
+          python-version: 3.11
       - name: Add conda to system path
         run: |
           echo $CONDA/bin >> $GITHUB_PATH