Migrate alert in _eoa_bronze_plan_banner to shared global alert

ee/app/views/shared/billings/_eoa_bronze_plan_banner.html.haml

 - if show_eoa_bronze_plan_banner?(namespace)
   .container-fluid.container-limited.pt-3
-    .gl-alert.gl-alert-info.gl-mt-5.js-eoa-bronze-plan-banner{ role: 'alert', data: { feature_id: ::EE::Users::CalloutsHelper::EOA_BRONZE_PLAN_BANNER, dismiss_endpoint: callouts_path } }
-      = sprite_icon('information-o', css_class: 'gl-icon gl-alert-icon gl-alert-icon-no-title')
-      %button.js-close.gl-alert-dismiss{ type: 'button', 'aria-label' => _('Dismiss') }
-        = sprite_icon('close', css_class: 'gl-icon')
+    = render 'shared/global_alert',
+      title: s_("BillingPlans|End of availability for the Bronze Plan"),
+      alert_class: 'gl-mt-5 js-eoa-bronze-plan-banner',
+      alert_data: { feature_id: ::EE::Users::CalloutsHelper::EOA_BRONZE_PLAN_BANNER, dismiss_endpoint: callouts_path } do
       .gl-alert-body
-        %h4.gl-alert-title= s_("BillingPlans|End of availability for the Bronze Plan")
         - announcement_link = external_link("announcement blog", "https://about.gitlab.com/blog/2021/01/26/new-gitlab-product-subscription-model")
         = s_("BillingPlans|While GitLab is ending availability of the Bronze plan, you can still renew your Bronze subscription one additional time before %{eoa_bronze_plan_end_date}. We are also offering a limited time free upgrade to our Premium Plan (up to 25 users)! Learn more about the changes and offers in our %{announcement_link}.").html_safe % { announcement_link: announcement_link, eoa_bronze_plan_end_date: eoa_bronze_plan_end_date.in_time_zone.to_date.to_s(:medium) }