chore(deps-dev): update ruff requirement from ~=0.9.3 to ~=0.9.4

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@0.9.3...0.9.4)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Pipfile

@@ -10,7 +10,7 @@ pre-commit = "~=4.1"
 pytest = "~=8.3"
 pytest-cov = "~=5.0"
 python-dateutil = "~=2.9"
-ruff = "~=0.9.3"
+ruff = "~=0.9.4"
 tox = "~=4.24"
 types-python-dateutil = "~=2.9"