Install poetry before setting up Python (#21)

Author: six8

.github/workflows/python-package.yml

@@ -15,13 +15,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    # Poetry has to be installed before setting up Python with a cache
+    - name: Install poetry
+      run: pipx install poetry    
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
         cache: poetry
-    - name: Install poetry
-      run: pipx install poetry        
     - name: Install dependencies
       run: poetry install --no-interaction
     - name: Lint