Make remediated-badge Pajamas compliant

Replaces ad hoc icon with GlBadge's icon prop in remediated_badge.vue.

ee/app/assets/javascripts/vulnerabilities/components/remediated_badge.vue

 <script>
-import { GlIcon, GlPopover, GlBadge } from '@gitlab/ui';
+import { GlPopover, GlBadge } from '@gitlab/ui';
 
 export default {
   components: {
-    GlIcon,
     GlPopover,
     GlBadge,
   },
@@ -25,9 +24,7 @@ export default {
 
 <template>
   <div class="gl-display-inline-block">
-    <gl-badge ref="badge" variant="info">
-      <gl-icon name="check-circle-dashed" />
-    </gl-badge>
+    <gl-badge ref="badge" variant="info" icon="check-circle-dashed" />
     <gl-popover
       ref="popover"
       :content="

ee/spec/frontend/vulnerabilities/remediated_badge_spec.js

-import { GlIcon, GlPopover, GlBadge } from '@gitlab/ui';
+import { GlPopover, GlBadge } from '@gitlab/ui';
 import { shallowMount } from '@vue/test-utils';
 import RemediatedBadge from 'ee/vulnerabilities/components/remediated_badge.vue';
 
@@ -9,7 +9,6 @@ const POPOVER_CONTENT =
 describe('Remediated badge component', () => {
   let wrapper;
 
-  const findIcon = () => wrapper.find(GlIcon);
   const findBadge = () => wrapper.find(GlBadge);
 
   const createWrapper = () => {
@@ -23,7 +22,7 @@ describe('Remediated badge component', () => {
   afterEach(() => wrapper.destroy());
 
   it('should display the correct icon', () => {
-    expect(findIcon().props('name')).toBe('check-circle-dashed');
+    expect(findBadge().props('icon')).toBe('check-circle-dashed');
   });
 
   it('should link the badge and the popover', () => {