Limit child epics and epic issues page size

Add 2000 limit to child epics and epic issue page size on graphQL.

ee/app/graphql/types/epic_type.rb

@@ -76,6 +76,7 @@ module Types
 
     field :children, ::Types::EpicType.connection_type, null: true,
           description: 'Children (sub-epics) of the epic',
+          max_page_size: 2000,
           resolver: ::Resolvers::EpicsResolver
     field :labels, Types::LabelType.connection_type, null: true,
           description: 'Labels assigned to the epic'
@@ -123,6 +124,7 @@ module Types
           null: true,
           complexity: 5,
           description: 'A list of issues associated with the epic',
+          max_page_size: 2000,
           resolver: Resolvers::EpicIssuesResolver
 
     field :descendant_counts, Types::EpicDescendantCountType, null: true,

ee/changelogs/unreleased/issue_9647.yml

+---
+title: Limit child epics and epic issues page size
+merge_request: 34553
+author:
+type: other