[pre-commit.ci] pre-commit autoupdate (#126)

updates:
- [github.com/psf/black: 21.8b0 → 21.12b0](psf/black@21.8b0...21.12b0)
- [github.com/PyCQA/flake8: 3.9.2 → 4.0.1](PyCQA/flake8@3.9.2...4.0.1)
- [github.com/pre-commit/pre-commit-hooks: v4.0.1 → v4.1.0](pre-commit/pre-commit-hooks@v4.0.1...v4.1.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -1,12 +1,12 @@
 exclude: .+/migrations/.+\.py
 repos:
     - repo: https://github.com/psf/black
-      rev: 21.8b0
+      rev: 21.12b0
       hooks:
         - id: black
 
     - repo: https://github.com/PyCQA/flake8
-      rev: 3.9.2
+      rev: 4.0.1
       hooks:
         - id: flake8
           args: [--max-line-length=88]
@@ -24,7 +24,7 @@ repos:
           exclude: ^(docs/conf.py|setup.py)
 
     - repo: https://github.com/pre-commit/pre-commit-hooks
-      rev: v4.0.1
+      rev: v4.1.0
       hooks:
         - id: check-yaml
         - id: trailing-whitespace