Add descriptions for ListLimitMetricEnum

.rubocop_manual_todo.yml

@@ -13,7 +13,6 @@
 # WIP See https://gitlab.com/gitlab-org/gitlab/-/issues/322903
 Graphql/Descriptions:
   Exclude:
-    - 'ee/app/graphql/ee/types/list_limit_metric_enum.rb'
     - 'ee/app/graphql/types/epic_state_enum.rb'
     - 'ee/app/graphql/types/health_status_enum.rb'
     - 'ee/app/graphql/types/iteration_state_enum.rb'

doc/api/graphql/reference/index.md

@@ -14332,9 +14332,9 @@ List limit metric setting.
 
 | Value | Description |
 | ----- | ----------- |
-| <a id="listlimitmetricall_metrics"></a>`all_metrics` |  |
-| <a id="listlimitmetricissue_count"></a>`issue_count` |  |
-| <a id="listlimitmetricissue_weights"></a>`issue_weights` |  |
+| <a id="listlimitmetricall_metrics"></a>`all_metrics` | Limit list by number and total weight of issues. |
+| <a id="listlimitmetricissue_count"></a>`issue_count` | Limit list by number of issues. |
+| <a id="listlimitmetricissue_weights"></a>`issue_weights` | Limit list by total weight of issues. |
 
 ### `MeasurementIdentifier`
 

ee/app/graphql/ee/types/list_limit_metric_enum.rb

@@ -6,9 +6,9 @@ module EE
       graphql_name 'ListLimitMetric'
       description 'List limit metric setting'
 
-      value 'all_metrics'
-      value 'issue_count'
-      value 'issue_weights'
+      value 'all_metrics', description: 'Limit list by number and total weight of issues.'
+      value 'issue_count', description: 'Limit list by number of issues.'
+      value 'issue_weights', description: 'Limit list by total weight of issues.'
     end
   end
 end