Update CI python version to 3.11

Signed-off-by: Travis Collins <travis.collins@analog.com>

Author: tfcollins

.github/workflows/doc.yml

@@ -8,10 +8,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.7
+      - name: Set up Python "3.11"
         uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: "3.11"
 
       - name: Install dependencies
         run: |