[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/pre-commit-hooks: v3.4.0 → v4.0.1](pre-commit/pre-commit-hooks@v3.4.0...v4.0.1)
- [github.com/asottile/pyupgrade: v2.12.0 → v2.25.0](asottile/pyupgrade@v2.12.0...v2.25.0)
- [github.com/PyCQA/isort: 5.8.0 → 5.9.3](PyCQA/isort@5.8.0...5.9.3)
- [github.com/psf/black: 20.8b1 → 21.8b0](psf/black@20.8b1...21.8b0)
- [github.com/asottile/blacken-docs: v1.10.0 → v1.11.0](adamchainz/blacken-docs@v1.10.0...v1.11.0)
- https://gitlab.com/PyCQA/flake8 → https://github.com/PyCQA/flake8
- [github.com/PyCQA/flake8: 3.9.0 → 3.9.2](PyCQA/flake8@3.9.0...3.9.2)

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.4.0
+    rev: v4.0.1
     hooks:
     -   id: check-added-large-files
         args: ['--maxkb=100']
@@ -10,12 +10,12 @@ repos:
     -   id: debug-statements
     -   id: end-of-file-fixer
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.12.0
+    rev: v2.25.0
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
 -   repo: https://github.com/PyCQA/isort
-    rev: 5.8.0
+    rev: 5.9.3
     hooks:
     - id: isort
       name: isort
@@ -25,16 +25,16 @@ repos:
       language: python
       types: [python]
 -   repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 21.8b0
     hooks:
     -   id: black
 -   repo: https://github.com/asottile/blacken-docs
-    rev: v1.10.0
+    rev: v1.11.0
     hooks:
     -   id: blacken-docs
         additional_dependencies: [black]
--   repo: https://gitlab.com/PyCQA/flake8
-    rev: 3.9.0
+-   repo: https://github.com/PyCQA/flake8
+    rev: 3.9.2
     hooks:
     -   id: flake8
         additional_dependencies: [