[DeadCode] Skip standalone @return false or true on RemoveUselessReturnTagRector

[samsonasik]

The following code should be skipped:

final class SkipReturnStandaloneTrueFalseByReturnBool
{
    /**
     * @return true
     */
    function someTrue(): bool
    {
        return true;
    }

    /**
     * @return false
     */
    function someFalse(): bool
    {
        return false;
    }
}

Ref https://phpstan.org/r/6fbad07c-4b5e-4d89-8970-03df898abc6e

[samsonasik]

Fixed 🎉