Update python-package.yml

.github/workflows/python-package.yml

@@ -24,11 +24,12 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Install Poetry
+      run: |
+        curl -sSL https://install.python-poetry.org | python3 -
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        poetry install
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names