Update python-docs.yaml

Fixing auto-doc build with s3

.github/workflows/python-docs.yaml

@@ -21,8 +21,10 @@ jobs:
     - name: Install dependencies and dev dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -e .
+        pip install -e .[s3]
         pip install -r DEV_REQUIREMENTS.txt
+        pip install -r S3_REQUIREMENTS.txt
+
     - name: Build docs with Portray
       env:
         PYTHONPATH: .