Reuse Ci::Pipeline.newest_first method

ee/app/models/vulnerability.rb

@@ -151,9 +151,8 @@ class Vulnerability < ApplicationRecord
     # See https://gitlab.com/gitlab-org/gitlab/-/issues/218012
     latest_successful_pipeline = project
       .ci_pipelines
-      .for_ref(project.default_branch)
-      .where(status: :success)
-      .order(created_at: :desc)
+      .newest_first(ref: project.default_branch, limit: 10)
+      .success
       .find { |pipeline| pipeline.builds.any? { |build| build.name == self.report_type } }
 
     # Technically this shouldn't ever happen.