Output element is already in list of controlComponents for form-control-has-label rule. Sort list of controlTypes to be same as in form-control-has-label rule.

This is necessary because form-control-has-label complains that output should have a label:

<output />

error Each form element must have a programmatically associated label element vuejs-accessibility/form-control-has-label

But if you do it complains about the label not being associated with a control:

<label for="out">
  <output id="out" />
</label>

error Form label must have an associated control vuejs-accessibility/label-has-for

Changing the output to progress removes the error, because it is already supported:

<label for="out">
  <progress id="out" />
</label>