Bump ruff from 0.15.18 to 0.15.20 in the non-major-versions group (#140)

Bumps the non-major-versions group with 1 update: [ruff](https://github.com/astral-sh/ruff).


Updates `ruff` from 0.15.18 to 0.15.20
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.18...0.15.20)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-major-versions
...

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

Author: dependabot[bot]

requirements-ci.txt

@@ -12,4 +12,4 @@ pylint==4.0.6
 isort==8.0.1
 pytest-cov==7.1.0
 pytest-html==4.2.0
-ruff==0.15.18
+ruff==0.15.20