Bump laravel/boost from 1.8.3 to 1.8.4

Bumps [laravel/boost](https://github.com/laravel/boost) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/laravel/boost/releases)
- [Changelog](https://github.com/laravel/boost/blob/main/CHANGELOG.md)
- [Commits](laravel/boost@v1.8.3...v1.8.4)

---
updated-dependencies:
- dependency-name: laravel/boost
  dependency-version: 1.8.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]