The collection validator is ignored in a nested validator

[sdobrovolschi]

Given the following class hierarchy

class Root {
   Parent parent;
}

class Parent {
   List<Child> children;
}

class Child {
   String name;
}

The validation of children is ignored.

var childValidator = ValidatorBuilder.of(Chidl.class)
                    .constraint(Child::getName, "name", Constraint::notNull)
                    .build();

var parentValidator = ValidatorBuilder.of(Parent.class)
                    .forEach(Parent::getChildrent, "children", childValidator)
                    .build();

var validator = ValidatorBuilder.of(Root.class)
                    .nest(Root::getParent, "parent", parentValidator)
                    .build()

The issue is that nested collection validators are not appended to the main validator. Please see https://github.com/making/yavi/blob/develop/src/main/java/am/ik/yavi/builder/ValidatorBuilder.java#L694