Fix: update faq link in pricing page

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/343082
Changlog: fixed

lib/gitlab/saas.rb

@@ -42,7 +42,7 @@ module Gitlab
     end
 
     def self.about_pricing_faq_url
-      "https://about.gitlab.com/gitlab-com/#faq"
+      "https://about.gitlab.com/pricing#faq"
     end
   end
 end