Separate dependenties installation

.github/workflows/tests.yml

@@ -32,10 +32,13 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install dependencies
+      - name: System dependencies
         run: |
           python -m pip install --upgrade pip
           curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
+
+      - name: Project dependencies
+        run: |
           poetry install
 
       - name: Lint code