[pre-commit.ci] pre-commit autoupdate

updates:
- https://gitlab.com/pycqa/flake8 → https://github.com/PyCQA/flake8
- [github.com/psf/black: 21.6b0 → 21.7b0](psf/black@21.6b0...21.7b0)
- [github.com/pycqa/isort: 5.8.0 → 5.9.2](PyCQA/isort@5.8.0...5.9.2)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -8,17 +8,17 @@ repos:
       - id: check-toml
       - id: check-added-large-files
       - id: debug-statements
-  - repo: https://gitlab.com/pycqa/flake8
+  - repo: https://github.com/PyCQA/flake8
     rev: "3.9.2"
     hooks:
       - id: flake8
         additional_dependencies: [flake8-import-order, flake8-bugbear]
   - repo: https://github.com/psf/black
-    rev: "21.6b0"
+    rev: "21.7b0"
     hooks:
       - id: black
   - repo: https://github.com/pycqa/isort
-    rev: 5.8.0
+    rev: 5.9.2
     hooks:
       - id: isort
         name: isort (python)