Base changes from throughput to new metrics terms

Relates to https://gitlab.com/gitlab-com/www-gitlab-com/-/merge_requests/75933

danger/documentation/Dangerfile

@@ -9,7 +9,7 @@ DOCUMENTATION_UPDATE_MISSING = <<~MSG
 
 For more information, see:
 
-- The Handbook page on [throughput implementation](https://about.gitlab.com/handbook/engineering/management/throughput/#implementation).
+- The Handbook page on [merge request types](https://about.gitlab.com/handbook/engineering/metrics/#data-classification).
 - The [definition of done](https://docs.gitlab.com/ee/development/contributing/merge_request_workflow.html#definition-of-done) documentation.
 MSG
 

danger/metadata/Dangerfile

@@ -20,7 +20,7 @@ if gitlab.mr_body.size < 5
 end
 
 if (THROUGHPUT_LABELS & gitlab.mr_labels).empty?
-  warn 'Please add a [throughput label](https://about.gitlab.com/handbook/engineering/metrics/#data-classification) to this merge request.'
+  warn 'Please add a [merge request type](https://about.gitlab.com/handbook/engineering/metrics/#data-classification) to this merge request.'
 end
 
 unless gitlab.mr_json["assignee"]

doc/development/contributing/issue_workflow.md

@@ -149,8 +149,8 @@ and `~"group::knowledge"` is picked up by someone in the Access group of the Pla
 the issue should be relabeled as `~"group::access"` while keeping the original
 `~"devops::create"` unchanged.
 
-We also use stage and group labels to help quantify our [throughput](https://about.gitlab.com/handbook/engineering/management/throughput/).
-Please read [Stage and Group labels in Throughput](https://about.gitlab.com/handbook/engineering/management/throughput/#stage-and-group-labels-in-throughput) for more information on how the labels are used in this context.
+We also use stage and group labels to help measure our [merge request rates](https://about.gitlab.com/handbook/engineering/merge-request-rate/).
+Please read [Stage and Group labels](https://about.gitlab.com/handbook/engineering/metrics/#stage-and-group-labels) for more information on how the labels are used in this context.
 
 ### Category labels