Update GitHub CI

.github/workflows/checks.yml

@@ -24,23 +24,29 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
+      id: install-python
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: Install poetry
-      run: |
-        curl -sSL \
-          "https://raw.githubusercontent.com/python-poetry/poetry/master/install-poetry.py" | python
-
-        # Adding `poetry` to `$PATH`:
-        echo "$HOME/.poetry/bin" >> $GITHUB_PATH
+    - name: Install Poetry
+      uses: snok/install-poetry@v1.3.3
+      with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+
+    - name: Cache poetry dependencies
+      id: cached-poetry-dependencies
+      uses: actions/cache@v3
+      with:
+        path: .venv
+        key: ${{ runner.os }}-${{ steps.install-python.outputs.python-version }}-${{ github.job }}-poetry-${{ hashFiles('**/poetry.lock') }}
 
     - name: Install dependencies
-      run: |
-        poetry config virtualenvs.in-project true
-        poetry run pip install -U pip
-        poetry install
+      if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+      run: poetry install --no-interaction --only="test"
 
     - name: Run pre-commit hooks
       uses: pre-commit/action@v3.0.0