ci(docs): Use checkout@v3's (v3.1) poetry cache

.github/workflows/docs.yml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         python-version: ["3.10"]
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - name: Filter changed file paths to outputs
         uses: dorny/paths-filter@v2.7.0
         id: changes
@@ -33,49 +33,21 @@ jobs:
         if: steps.changes.outputs.docs == 'true' || steps.changes.outputs.root_docs == 'true' || steps.changes.outputs.python_files == 'true'
         run: echo "PUBLISH=$(echo true)" >> $GITHUB_ENV
 
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v1
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Get full Python version
-        id: full-python-version
-        shell: bash
-        run: echo ::set-output name=version::$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")
-
       - name: Install poetry
         run: |
           curl -O -sSL https://install.python-poetry.org/install-poetry.py
           python install-poetry.py -y --version 1.1.12
           echo "PATH=${HOME}/.poetry/bin:${PATH}" >> $GITHUB_ENV
           rm install-poetry.py
 
-      - name: Add ~/.local/bin to PATH
-        run: echo "$HOME/.local/bin" >> $GITHUB_PATH
-
-      - name: Get poetry cache paths from config
-        run: |
-          echo "poetry_virtualenvs_path=$(poetry config --list | sed -n 's/.*virtualenvs.path = .* # //p' | sed -e 's/^\"//' -e 's/\"$//')" >> $GITHUB_ENV
-          echo "poetry_virtualenvs_path=$(poetry config --list | sed -n 's/.*virtualenvs.path = .* # //p' | sed -e 's/^\"//' -e 's/\"$//')" >> $GITHUB_ENV
-
-      - name: Configure poetry
-        shell: bash
-        run: poetry config virtualenvs.in-project true
-
-      - name: Set up cache
-        uses: actions/cache@v2
-        id: cache
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
         with:
-          path: |
-            .venv
-            {{ env.poetry_cache_dir }}
-            {{ env.poetry_virtualenvs_path }}
-          key: venv-${{ runner.os }}-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock') }}
+          python-version: ${{ matrix.python-version }}
+          cache: 'poetry'
 
-      - name: Ensure cache is healthy
-        if: steps.cache.outputs.cache-hit == 'true'
-        shell: bash
-        run: poetry run pip --version >/dev/null 2>&1 || rm -rf .venv
+      - name: Add ~/.local/bin to PATH
+        run: echo "$HOME/.local/bin" >> $GITHUB_PATH
 
       - name: Install dependencies [w/ docs]
         run: poetry install --extras "docs lint"