chore: update python version in gh action

.github/workflows/docs.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - xavierdocs
     paths:
       - 'docs/**'
 
@@ -14,7 +15,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.9
+          python-version: 3.11
       - run: pip install --upgrade pip
       - run: pip install -r docs/requirements.txt
       - run: mkdocs gh-deploy --force