Run docs workflow on Python 3.12

Author: ndgrigorian

.github/workflows/build-docs.yml

@@ -35,7 +35,7 @@ jobs:
         if: ${{ !github.event.pull_request || github.event.action != 'closed' }}
         uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: "3.12"
           architecture: x64
       - name: Install sphinx dependencies
         if: ${{ !github.event.pull_request || github.event.action != 'closed' }}