Update pre-commit hook pycqa/isort to v6

Author: renovate[bot]

{{cookiecutter.project_slug}}/.pre-commit-config.yaml

@@ -23,7 +23,7 @@ repos:
     hooks:
       - id: ruff{% endif %}
   - repo: https://github.com/pycqa/isort
-    rev: '5.13.2'
+    rev: '6.0.1'
     hooks:
       - id: isort
   - repo: https://github.com/asottile/pyupgrade