Fix usages of deprecated Symfony\Component\OptionsResolver\OptionsResolverInterface

[aivus]

Symfony\Component\OptionsResolver\OptionsResolverInterface was deprecated since 2.6 and removed in 3.0

SHFormBundle/Form/Core/Type/PlainType.php

Line 9 in e1fae05

use Symfony\Component\OptionsResolver\OptionsResolverInterface;