Support and pass a --memory-limit option to PHPStan

[GueGuerreiro]

@shaal shared the following error he was getting on the Drupal Slack channel:

PHPStan crashed in the previous run probably because of excessive memory consumption.
It consumed around 508 MB of memory.

To avoid this issue, allow to use more memory with the --memory-limit option.

He wasn't able to to use the --memory-limit option, because although phpstan does support it, drupal-check currently has no way to pass that argument over to it.

On

$inceptionResult = CommandHelper::begin(
                $input,
                $output,
                $input->getArgument('path'),
                null,
                null,
                null,
                $configuration,
                null,
                false
            );

We can add the memory-limit option as the fifth parameter. We don't even really need to perform any validation on the field, as that's already being handled by phpstan itself.