Use Python 3.14 for build-docs in CI

Author: srittau

.github/workflows/build-docs.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: "3.14"
     - name: Install dependencies
       run: |
         pip install --upgrade pip