chore(docs): Update documentation dependencies

Author: tomasfarias

.github/workflows/docs_pages.yaml

@@ -12,23 +12,31 @@ jobs:
       uses: actions/checkout@master
       with:
         fetch-depth: 0
+
     - name: Set up Python '3.10'
       uses: actions/setup-python@v2
       with:
         python-version: '3.10'
+
     - name: Install Poetry
       uses: abatilo/actions-poetry@v2.1.4
       with:
         poetry-version: 1.3.2
+
     - name: Install airflow-dbt-python with Poetry
       run: poetry install -E airflow -E airflow-providers --with docs
+
+    - name: Install Graphviz
+      run: apt-get install graphviz
+
     - name: Build documentation
       run: |
         mkdir gh-pages
         touch gh-pages/.nojekyll
         cd docs/
         poetry run sphinx-build -b html . _build
         cp -r _build/* ../gh-pages/
+
     - name: Deploy documentation
       if: ${{ github.ref_type == 'tag' }}
       uses: JamesIves/github-pages-deploy-action@v4