Bump smithay-client-toolkit from 0.18.0 to 0.18.1 (#871)

Bumps [smithay-client-toolkit](https://github.com/smithay/client-toolkit) from 0.18.0 to 0.18.1.
- [Changelog](https://github.com/Smithay/client-toolkit/blob/v0.18.1/CHANGELOG.md)
- [Commits](Smithay/client-toolkit@v0.18.0...v0.18.1)

---
updated-dependencies:
- dependency-name: smithay-client-toolkit
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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