cvInlineNotification and cvToastNotification close buttons have blue borders enabled by default

[christianlmc]

Detailed description

Describe in detail the issue you're having.

All the X'es have a blue border on low-contrast mode

Is this a feature request (new component, new icon), a bug, or a general issue?

General Issue

Is this issue related to a specific component?

cvInlineNotification and cvToastNotification

What did you expect to happen? What happened instead? What would you like to see changed?

Expected behavior:

What browser are you working in?

Chrome 81

What version of the Carbon Design System are you using?

"@carbon/vue": "^2.28.0"

Steps to reproduce the issue

1. Step one

<cv-inline-notification
        title="Inline Notification - Low Contrast"
        sub-title="Subtitulo"
        action-label="Acao"
        :low-contrast="true"
        @close="closeIt"
        @action="closeIt"
/>

2. Step two Go to browser