💚 Fix GitHub Actions Poetry setup (#21)

.github/workflows/test.yml

@@ -24,11 +24,10 @@ jobs:
         run: echo ::set-output name=version::$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")
       - name: Install poetry
         run: |
-          curl -fsS -o get-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py
-          python get-poetry.py -y
-          echo "::set-env name=PATH::$HOME/.poetry/bin:$PATH"
+          python -m pip install --upgrade pip
+          python -m pip install poetry
       - name: Configure poetry
-        run: poetry config virtualenvs.in-project true
+        run: python -m poetry config virtualenvs.in-project true
       - name: Set up cache
         uses: actions/cache@v1
         id: cache
@@ -37,10 +36,10 @@ jobs:
           key: venv-${{ runner.os }}-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock') }}
       - name: Ensure cache is healthy
         if: steps.cache.outputs.cache-hit == 'true'
-        run: poetry run pip --version >/dev/null 2>&1 || rm -rf .venv
+        run: python -m poetry run pip --version >/dev/null 2>&1 || rm -rf .venv
       - name: Install Dependencies
-        run: poetry install
+        run: python -m poetry install
       - name: Test
-        run: poetry run bash scripts/test.sh
+        run: python -m poetry run bash scripts/test.sh
       - name: Upload coverage
         uses: codecov/codecov-action@v1