chore(deps): update dependency phpunit/phpunit to v11.2.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
phpunit/phpunit (source)	11.2.7 -> 11.2.8

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Release Notes

sebastianbergmann/phpunit (phpunit/phpunit)

### [`v11.2.8`](https://togithub.com/sebastianbergmann/phpunit/compare/11.2.7...11.2.8) [Compare Source](https://togithub.com/sebastianbergmann/phpunit/compare/11.2.7...11.2.8)

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