Fix MR widget ci status icon tooltip flicker

app/assets/javascripts/pipelines/components/stage.vue

@@ -175,6 +175,7 @@ export default {
       <span
         :aria-label="stage.title"
         aria-hidden="true"
+        class="no-pointer-events"
       >
         <icon :name="borderlessIcon" />
       </span>

app/assets/stylesheets/bootstrap_migration.scss

@@ -128,7 +128,8 @@ table {
   border-spacing: 0;
 }
 
-.tooltip {
+.tooltip,
+.no-pointer-events {
   // Fix bootstrap4 bug whereby tooltips flicker when they are hovered over their borders
   pointer-events: none;
 }