chore(deps-dev): bump phpunit/phpunit from 9.3.8 to 9.4.1

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.3.8 to 9.4.1.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-9.4.md)
- [Commits](sebastianbergmann/phpunit@9.3.8...9.4.1)

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

Author: dependabot-preview[bot]