[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/setup-cfg-fmt: v1.17.0 → v1.18.0](asottile/setup-cfg-fmt@v1.17.0...v1.18.0)
- [github.com/PyCQA/flake8: 3.9.2 → 4.0.1](PyCQA/flake8@3.9.2...4.0.1)

.pre-commit-config.yaml

@@ -42,7 +42,7 @@ repos:
     -   id: reorder-python-imports
         types: [python]
 -   repo: https://github.com/asottile/setup-cfg-fmt
-    rev: v1.17.0
+    rev: v1.18.0
     hooks:
     -   id: setup-cfg-fmt
 -   repo: https://github.com/psf/black
@@ -56,7 +56,7 @@ repos:
     -   id: blacken-docs
         additional_dependencies: [black]
 -   repo: https://github.com/PyCQA/flake8
-    rev: 3.9.2
+    rev: 4.0.1
     hooks:
     -   id: flake8
         types: [python]