Bump ruff from 0.15.5 to 0.15.6 (#731)

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.15.5 to 0.15.6.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.5...0.15.6)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -65,7 +65,7 @@ dev = [
   "mypy==1.19.1",
   "black==26.3.1",
   "pyright==1.1.408",
-  "ruff==0.15.5",
+  "ruff==0.15.6",
   "pytest",
   "pytest-cov",
   "pytest-watch",