[pre-commit.ci] pre-commit autoupdate

updates:
- https://github.com/ambv/black → https://github.com/psf/black
- https://gitlab.com/pycqa/flake8 → https://github.com/PyCQA/flake8

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -1,5 +1,5 @@
 repos:
--   repo: https://github.com/ambv/black
+-   repo: https://github.com/psf/black
     rev: 21.12b0
     hooks:
     - id: black
@@ -9,7 +9,7 @@ repos:
   hooks:
     - id: isort
       name: isort (python)
--   repo: https://gitlab.com/pycqa/flake8
+-   repo: https://github.com/PyCQA/flake8
     rev: 4.0.1
     hooks:
     - id: flake8