Fatal with GitHubAction

[llaumgui]

Hi,

On my GitHubAction: https://github.com/llaumgui/JunitXml/runs/2712050364?check_suite_focus=true

Deprecated: Method ReflectionParameter::getClass() is deprecated in /tmp/vendor/php-di/php-di/src/DI/Definition/Source/Autowiring.php on line 52
Generating /github/workspace to /github/workspace/.couscous/generated
[notice] Fetching template from https://github.com/CouscousPHP/Template-Dark

Fatal error: Uncaught TypeError: Return value of "Couscous\Application\Cli\GenerateCommand::execute()" must be of the type int, "null" returned. in /tmp/vendor/symfony/console/Command/Command.php:291
Stack trace:
#0 /tmp/vendor/symfony/console/Application.php(974): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#1 /tmp/vendor/symfony/console/Application.php(291): Symfony\Component\Console\Application->doRunCommand(Object(Couscous\Application\Cli\GenerateCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#2 /tmp/vendor/symfony/console/Application.php(167): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#3 /tmp/vendor/couscous/couscous/bin/couscous(43): Symfony\Component\Console\Application->run()
#4 {main}
  thrown in /tmp/vendor/symfony/console/Command/Command.php on line 291