Update ruff requirement from >=0.5.1,<0.12.6 to >=0.5.1,<0.12.9

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](https://github.com/astral-sh/ruff/compare/0.5.1...0.12.8)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.12.8
  dependency-type: direct:production
...

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

pyproject.toml

@@ -88,7 +88,7 @@ swarms = "swarms.cli.main:main"
 
 [tool.poetry.group.lint.dependencies]
 black = ">=23.1,<26.0"
-ruff = ">=0.5.1,<0.12.6"
+ruff = ">=0.5.1,<0.12.9"
 types-toml = "^0.10.8.1"
 types-pytz = ">=2023.3,<2026.0"
 types-chardet = "^5.0.4.6"