build(deps): update ruff requirement from >=0.9.1 to >=0.15.11

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@0.9.1...0.15.11)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.11
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -6,7 +6,7 @@ readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
     "mypy>=1.14.1",
-    "ruff>=0.9.1",
+    "ruff>=0.15.11",
     "taskipy>=1.14.1",
 ]