using upstream flake8

Author: AakashGfude

.pre-commit-config.yaml

@@ -9,7 +9,11 @@ repos:
       - id: check-yaml
       - id: end-of-file-fixer
       - id: trailing-whitespace
-      - id: flake8
+
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.7.9
+    hooks:
+    - id: flake8
 
   - repo: https://github.com/psf/black
     rev: 20.8b1