pre-commit-ci update (#4092)

Author: bjlittle

.pre-commit-config.yaml

@@ -23,7 +23,7 @@ repos:
         # Force black to run on whole repo, using settings from pyproject.toml
         pass_filenames: false
         args: [--config=./pyproject.toml, .]
--   repo: https://gitlab.com/pycqa/flake8
+-   repo: https://github.com/PyCQA/flake8
     rev: '3.9.0'
     hooks:
         # Run flake8.