[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/mgedmin/check-python-versions: 0.18.0 → 0.18.1](mgedmin/check-python-versions@0.18.0...0.18.1)
- [github.com/psf/black: 21.5b2 → 21.7b0](psf/black@21.5b2...21.7b0)
- [github.com/PyCQA/isort.git: 5.8.0 → 5.9.2](https://github.com/PyCQA/isort.git/compare/5.8.0...5.9.2)
- [github.com/asottile/pyupgrade: v2.19.1 → v2.21.2](asottile/pyupgrade@v2.19.1...v2.21.2)

.pre-commit-config.yaml

@@ -1,14 +1,14 @@
 repos:
 -   repo: https://github.com/mgedmin/check-python-versions
-    rev: 0.18.0
+    rev: 0.18.1
     hooks:
     -   id: check-python-versions
 -   repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.0.1
     hooks:
     -   id: debug-statements
 -   repo: https://github.com/psf/black
-    rev: 21.5b2
+    rev: 21.7b0
     hooks:
     -   id: black
         language_version: python3
@@ -20,11 +20,11 @@ repos:
         - flake8-click==0.3.1
         - flake8-bugbear==20.1.4
 -   repo: https://github.com/PyCQA/isort.git
-    rev: 5.8.0
+    rev: 5.9.2
     hooks:
     -   id: isort
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.19.1
+    rev: v2.21.2
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]