[Console] fix status code when Exception::getCode returns something like 0.1
[Console] ensure exit code between 0-254

255 is reserved by PHP and should not be used

also put this code inside the codeCoverageIgnore block because it cannot be tested with phpunit
Revert "[Console] ensure exit code between 0-254"

This reverts commit 6b9180a23ded06648ea8c79251e96ce87dd5c94f.