helperText props on <Dropdown /> with class ErrorMessage

[tcelestino]

Describe the feature or problem you’d like to solve

When we're using <Dropdown /> add props helperText, when this props is rendered the span wrapper has ErrorMessage class. It can see in the printscreen.

Proposed solution

Changes class on props helperText

How will it benefit?

If a user did a test case to validations, if user to use <Dropdown /> with props helperText the test case will fails. And, I believe that helperText isn't a error.

Additional context