[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/PyCQA/flake8: 3.9.2 → 4.0.1](PyCQA/flake8@3.9.2...4.0.1)
- [github.com/pre-commit/mirrors-mypy: v0.910 → v0.910-1](pre-commit/mirrors-mypy@v0.910...v0.910-1)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -10,7 +10,7 @@ repos:
     -   id: double-quote-string-fixer
     -   id: requirements-txt-fixer
 -   repo: https://github.com/PyCQA/flake8
-    rev: 3.9.2
+    rev: 4.0.1
     hooks:
     -   id: flake8
 -   repo: https://github.com/pre-commit/mirrors-autopep8
@@ -33,7 +33,7 @@ repos:
     -   id: add-trailing-comma
         args: [--py36-plus]
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.910
+    rev: v0.910-1
     hooks:
     -   id: mypy
         additional_dependencies: [types-all]