Update ruff requirement from >=0.12 to >=0.15.21 (#9)

* Update ruff requirement from >=0.12 to >=0.15.21

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@0.12.0...0.15.21)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.21
  dependency-type: direct:development
...

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

* chore: regenerate uv.lock for ruff 0.15.21 + merge main

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Hermes Agent <hermes@olmeko.local>

Author: dependabot[bot]

pyproject.toml

@@ -9,7 +9,7 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-dev = ["pytest>=8.0", "httpx>=0.27", "pyright>=1.1", "ruff>=0.12"]
+dev = ["pytest>=8.0", "httpx>=0.27", "pyright>=1.1", "ruff>=0.15.21"]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]