Fix(input_label_visible) should not trigger when clipped 0,0,0,0 - different behavior in FF vs Chrome

[philljenkins]

The Carbon Tab list does not trigger this rule in Chrome, but does in Firefox:

• Rule ID: input_label_visible:
  • Needs review
  • Reason ID: potential_no_label The input element does not have an associated visible label
  • An input element must have an associated visible label

The SVG button is clipped 0,0,0,0 in this Carbon tab list buttons, so this rule should not be triggered:
See
https://react.carbondesignsystem.com/iframe.html?args=&id=components-tabs--default&viewMode=story

<button
    title="Remove Dashboard tab"
    class="cds--visually-hidden cds--tabs__nav-item--close-icon--selected"
    aria-hidden="true"
    tabindex="-1"
    type="button">

In Chrome, the style is
cds--tabs__nav-item--close--hidden {
clip: rect(0, 0, 0, 0);

In Firefox, the style is also:
.cds--tabs__nav-item--close--hidden {
clip: rect(0,0,0,0);

but, Firefox is warning:

clip is deprecated by W3C standards.
Learn more about clip

[philljenkins]

This rule does not trigger in either Chrome or Firefox in store Version 3.1.76
only in Firefox using PR #2025 Action Artifact.

[philljenkins]

This is an "Other related Issues possible for this release" in Epic #2100

[philljenkins]

Using this test page
https://react.carbondesignsystem.com/iframe.html?args=&id=components-tabs--default&viewMode=story

After the fix, the Carbon element are correctly not triggered in Firefox

Before the fix, the Checker incorrectly flagged the test page input elements as not having associated visible labels:

• Rule ID: input_label_visible
• Reason ID: potential_no_label
• Needs review
• The input element does not have an associated visible label
• An input element must have an associated visible label