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## 2.4.2

**`(chore):`** Bump phpunit/phpunit dev dependency from 9.0 to 12.5.22 to address
GHSA-qrr6-mg7r-m243 (argument injection via newline in PHP INI values
forwarded to child processes). Also bumps the PHP version used by the
generated `ci.yml` workflow from 8.1 to 8.3, which is the minimum
supported by PHPUnit 12. The `php` constraint in generated
`composer.json` files is unchanged at 8.1, so production installs
(`composer install --no-dev`) are unaffected.