Chore(deps): Update ruff requirement from <0.8 to <0.9

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@v0.0.18...0.8.0)

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

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

pyproject.toml

@@ -102,7 +102,7 @@ optional-dependencies.develop = [
   "mypy<1.14",
   "poethepoet<0.30",
   "pyproject-fmt<2.5",
-  "ruff<0.8",
+  "ruff<0.9",
   "sphinx-autobuild==2021.3.14", # Newer versions stopped "watching" appropriately?
   "validate-pyproject<0.23",
 ]