[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/psf/black: 23.7.0 → 23.9.1](psf/black@23.7.0...23.9.1)
- [github.com/PyCQA/flake8: 6.0.0 → 6.1.0](PyCQA/flake8@6.0.0...6.1.0)

.pre-commit-config.yaml

@@ -19,15 +19,15 @@ repos:
       exclude: devtools/conda.recipe/meta.yaml  # doesn't play nice with jinja
 #    - id: no-commit-to-branch  # only makes sense for local pre-commit hooks
 -   repo: https://github.com/psf/black
-    rev: 23.7.0
+    rev: 23.9.1
     hooks:
     - id: black
 -   repo: https://github.com/PyCQA/isort
     rev: 5.12.0
     hooks:
     - id: isort
 -   repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 6.1.0
     hooks:
     - id: flake8
 -   repo: https://github.com/PyCQA/pydocstyle