chore(deps): update ruff requirement from ==0.13.* to ==0.14.* (#189)

Updates the requirements on [ruff](https://github.com/astral-sh/ruff) to permit the latest version.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.13.0...0.14.0)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.14.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements-testing.txt

@@ -6,4 +6,4 @@ pytest-xdist == 3.8.*
 types-PyYAML == 6.*
 black == 25.*
 mypy == 1.18.*
-ruff == 0.13.*
+ruff == 0.14.*