Merge branch 'aregnery/update-button-variant-boards-issue-title-save' into 'master'

Update button variant to confirm for save changes button in boards sidebar

See merge request gitlab-org/gitlab!77255

app/assets/javascripts/boards/components/sidebar/board_sidebar_title.vue

@@ -150,7 +150,7 @@ export default {
 
       <div class="gl-display-flex gl-w-full gl-justify-content-space-between gl-mt-5">
         <gl-button
-          variant="success"
+          variant="confirm"
           size="small"
           data-testid="submit-button"
           :disabled="!title"