chore(deps-dev): bump ruff from 0.8.0 to 0.8.6 in /requirements (aws#7819)

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.8.0 to 0.8.6.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.8.0...0.8.6)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: seshubaws <116689586+seshubaws@users.noreply.github.com>

Author: dependabot[bot]

requirements/pre-dev.txt

@@ -1 +1 @@
-ruff==0.8.0
+ruff==0.8.6