wip: move poetry setup inside the docker

.github/workflows/ci-sphinx.yml

@@ -21,29 +21,19 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v3
-      - name: Set up Python
-        uses: actions/setup-python@v4.2.0
-        with:
-          python-version: "3.10"
-      # You can test your matrix by printing the current Python version
-      - name: Display Python version
-        run: python -c "import sys; print(sys.version)"
-      # Install Poetry and dependencies
-      - name: Install Poetry
-        uses: snok/install-poetry@v1
-      - name: Install dependencies
-        run: |
-          poetry config virtualenvs.in-project false
-          poetry install --all-extras
-          pip install jinja2==3.0.0
-
+      - uses: actions/checkout@v3      
       - name: Sphinx Build
         # You may pin to the exact commit or the version.
         # uses: ammaraskar/sphinx-action@8b4f60114d7fd1faeba1a712269168508d4750d2
-        uses: ammaraskar/sphinx-action@0.4
+        uses: ammaraskar/sphinx-action@master
         with:
           # The folder containing your sphinx docs.
           docs-folder: docs/
+          pre-build-command: |
+            pip install -U pip
+            python -c "import sys; print(sys.version)"
+            pip install poetry
+            poetry config virtualenvs.in-project false
+            poetry install --all-extras
           # The command used to build your documentation.
           build-command: make html #"-W --keep-going" #  -n"