build(deps-dev): bump pestphp/pest from 2.34.6 to 2.34.9

Bumps [pestphp/pest](https://github.com/pestphp/pest) from 2.34.6 to 2.34.9.
- [Release notes](https://github.com/pestphp/pest/releases)
- [Changelog](https://github.com/pestphp/pest/blob/2.x/RELEASE.md)
- [Commits](pestphp/pest@v2.34.6...v2.34.9)

---
updated-dependencies:
- dependency-name: pestphp/pest
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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