Update symfony/phpunit-bridge requirement from ^5.2 || ^6.2 || ^7.0 to ^5.2 || ^6.2 || ^7.0 || ^8.0

Update symfony/phpunit-bridge requirement from ^5.2 || ^6.2 || ^7.0 to ^5.2 || ^6.2 || ^7.0 || ^8.0 #23