This PR was squashed before being merged into the 6.4 branch.

Discussion
----------

 [Console] Handle signals on text input

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        |
| License       | MIT

`QuestionHelper` is blocking signals because of its `fgets`/`fgetc` use.
This PR uses `fread` so signals can be dispatched in text inputs.
Since Windows is not supported by the PCNTL extension, it was working fine on this OS.
This change has been tested in Windows, Linux and MacOS.

> [!NOTE]
>  This PR replaces #61878.

---

Snippet to test the behavior manually:
```php
use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\Question;

#[AsCommand('app:test')]
class TestCommand extends Command
{
    protected function configure(): void
    {
        $this->addArgument('mode', InputArgument::OPTIONAL, default: 'single');
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $mode = $input->getArgument('mode');

        $question = new Question('Enter text: ');
        $question->setMultiline($mode !== 'single');

        $helper = new QuestionHelper();
        $result = $helper->ask($input, $output, $question);

        $output->writeln('Result: '.$result);

        return Command::SUCCESS;
    }
}
```

Usage:
- Single line input: `php bin/console app:test single`
- Multiline input: `php bin/console app:test multi`

Commits
-------

7c40cad Handle signals on text input