Bump uv from 0.8.4 to 0.8.6 in /.ci/lumen_cli (#161212)

Bumps [uv](https://github.com/astral-sh/uv) from 0.8.4 to 0.8.6.
- [Release notes](https://github.com/astral-sh/uv/releases)
- [Changelog](https://github.com/astral-sh/uv/blob/main/CHANGELOG.md)
- [Commits](https://github.com/astral-sh/uv/compare/0.8.4...0.8.6)

---
updated-dependencies:
- dependency-name: uv
  dependency-version: 0.8.6
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.ci/lumen_cli/pyproject.toml

@@ -6,7 +6,7 @@ dependencies = [
     "GitPython==3.1.45",
     "docker==7.1.0",
     "pytest==7.3.2",
-    "uv==0.8.4"
+    "uv==0.8.6"
 ]
 
 [tool.setuptools]