Update to Python version

Ubuntu latest no longer supports Python 3.7, which stops the documentation from building. Trying a newer version.

Author: SPMcentral

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.7'
+          python-version: '3.10.6'
           architecture: 'x64'
       - name: Install dependencies
         run: |