fix: install flake8-pyproject for read config from toml for linting;

.github/workflows/linting.yml

@@ -23,7 +23,7 @@ jobs:
 
             - name: Install Flake8
               run: |
-                pip install flake8
+                pip install flake8 flake8-pyproject
 
             - name: Run linting
               run: |