Update CICD to use rocket icon

app/views/layouts/nav/sidebar/_project.html.haml

@@ -154,7 +154,7 @@
         = nav_link(controller: [:pipelines, :builds, :jobs, :pipeline_schedules, :artifacts]) do
           = link_to project_pipelines_path(@project), class: 'shortcuts-pipelines' do
             .nav-icon-container
-              = sprite_icon('pipeline')
+              = sprite_icon('rocket')
             %span.nav-item-name
               = _('CI / CD')