Bump ruff from 0.5.2 to 0.5.4 in /requirements

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.5.2 to 0.5.4.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.5.2...0.5.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements/requirements.txt

@@ -5,4 +5,4 @@ cvxpy == 1.5.2
 pytest == 8.3.1 # For unit test
 pytest-xdist == 3.6.1 # For unit test
 mypy == 1.11.0 # For unit test
-ruff == 0.5.2 # For unit test
+ruff == 0.5.4 # For unit test