deps(uv)(deps): bump ipywidgets from 8.1.7 to 8.1.8

Bumps [ipywidgets](https://github.com/jupyter-widgets/ipywidgets) from 8.1.7 to 8.1.8.
- [Release notes](https://github.com/jupyter-widgets/ipywidgets/releases)
- [Commits](jupyter-widgets/ipywidgets@8.1.7...8.1.8)

---
updated-dependencies:
- dependency-name: ipywidgets
  dependency-version: 8.1.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]