chore: Use the latest PHPUnit wherever possible, use PHP 8.0 for PHPCS#97

ondrejmirtes merged 1 commit intophpstan:masterphpstan/phpstan-phpunit:masterfrom

Kocal:imp/latest-phpunit-and-php8-for-phpcsKocal/phpstan-phpunit:imp/latest-phpunit-and-php8-for-phpcsCopy head branch name to clipboard