build(deps-dev): bump symfony/browser-kit from 6.3.2 to 6.3.8

Bumps [symfony/browser-kit](https://github.com/symfony/browser-kit) from 6.3.2 to 6.3.8.
- [Release notes](https://github.com/symfony/browser-kit/releases)
- [Changelog](https://github.com/symfony/browser-kit/blob/6.3/CHANGELOG.md)
- [Commits](symfony/browser-kit@v6.3.2...v6.3.8)

---
updated-dependencies:
- dependency-name: symfony/browser-kit
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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