[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/pyupgrade: v2.37.2 → v2.37.3](asottile/pyupgrade@v2.37.2...v2.37.3)
- [github.com/PyCQA/flake8: 4.0.1 → 5.0.3](PyCQA/flake8@4.0.1...5.0.3)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -20,7 +20,7 @@ repos:
     -   id: add-trailing-comma
         args: [--py36-plus]
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.37.2
+    rev: v2.37.3
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
@@ -29,7 +29,7 @@ repos:
     hooks:
     -   id: autopep8
 -   repo: https://github.com/PyCQA/flake8
-    rev: 4.0.1
+    rev: 5.0.3
     hooks:
     -   id: flake8
         exclude: ^docs/conf.py