pre-commit: Change flake8 to repo-based

.pre-commit-config.yaml

@@ -14,20 +14,20 @@ repos:
         #    hooks:
         #      - id: autopep8
 
-### # flake8 --show-source <file>
-### -   repo: https://gitlab.com/pycqa/flake8
-###     rev: ''
-###     hooks:
-###       - id: flake8
-#
+# flake8 --show-source <file>
+-   repo: https://gitlab.com/pycqa/flake8
+    rev: '3.9.2'
+    hooks:
+      - id: flake8
+
 # Try using local flake8
-- repo: local
-  hooks:
-    - id: flake8
-      name: flake8
-      entry: flake8
-      language: system
-      types: [ python ]
+### - repo: local
+###   hooks:
+###     - id: flake8
+###       name: flake8
+###       entry: flake8
+###       language: system
+###       types: [ python ]
 
 -   repo: https://github.com/pre-commit/pygrep-hooks
     rev: 'v1.9.0'