[lazy_extractors] Fix suitable and add flake8 test

.github/workflows/quick-test.yml

@@ -27,5 +27,7 @@ jobs:
         python-version: 3.9
     - name: Install flake8
       run: pip install flake8
+    - name: Make lazy extractors
+      run: python devscripts/make_lazy_extractors.py yt_dlp/extractor/lazy_extractors.py
     - name: Run flake8
       run: flake8 .