Bump @slidev/cli from 0.48.8 to 0.48.9

Bumps [@slidev/cli](https://github.com/slidevjs/slidev) from 0.48.8 to 0.48.9.
- [Release notes](https://github.com/slidevjs/slidev/releases)
- [Commits](slidevjs/slidev@v0.48.8...v0.48.9)

---
updated-dependencies:
- dependency-name: "@slidev/cli"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>