Correct Apply link of Service Engineer in Jobs Page
Issue [474: Service Engineer's 'Apply' link is wrongly linked] (https://gitlab.com/gitlab-com/www-gitlab-com/issues/474)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Issue [474: Service Engineer's 'Apply' link is wrongly linked] (https://gitlab.com/gitlab-com/www-gitlab-com/issues/474)