missing flake8 dependency

Author: Eran Davidovich

.github/workflows/pytest.yml

@@ -18,6 +18,11 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8
+
       - name: Lint with flake8
         run: |
           flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics