Add more consistency tests (#4983)

Follow up fo #4971

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

.github/workflows/tests.yml

@@ -11,7 +11,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-      - run: ./tests/check_consistent.py
+      - run: |
+          pip install toml
+          ./tests/check_consistent.py
 
   flake8:
     name: Lint with flake8