fix: doc workflow python version

.github/workflows/docs.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-        - "3.13"
+        - "3.11"
     steps:
     - uses: actions/checkout@v4
     - name: Cache uv
@@ -37,7 +37,7 @@ jobs:
     #     python-version: ${{ matrix.python-version }}
     #     cache: uv
     - name: Set up Python ${{ matrix.python-version }}
-      run: uv venv --python 3.11
+      run: uv venv --python ${{ matrix.python-version }}
     - name: Install dependencies
       run: uv pip install -e .[docs]