Update isort requirement from <5.14,>=5.12 to >=5.12,<6.2

Updates the requirements on [isort](https://github.com/PyCQA/isort) to permit the latest version.
- [Release notes](https://github.com/PyCQA/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@5.12.0...6.1.0)

---
updated-dependencies:
- dependency-name: isort
  dependency-version: 6.1.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -34,7 +34,7 @@ dev = [
     "ruff",
     "mypy>=1.0,<2.0",
     "black>=23.0,<25.0",
-    "isort>=5.12,<5.14",
+    "isort>=5.12,<6.2",
     "pytest",
     "pytest-sphinx",
     "pytest-cov",