Add connection type to ci config fields

app/graphql/types/ci/config/config_type.rb

@@ -11,7 +11,7 @@ module Types
               description: 'Linting errors'
         field :merged_yaml, GraphQL::STRING_TYPE, null: true,
               description: 'Merged CI config YAML'
-        field :stages, [Types::Ci::Config::StageType], null: true,
+        field :stages, Types::Ci::Config::StageType.connection_type, null: true,
               description: 'Stages of the pipeline'
         field :status, Types::Ci::Config::StatusEnum, null: true,
               description: 'Status of linting, can be either valid or invalid'

app/graphql/types/ci/config/group_type.rb

@@ -9,7 +9,7 @@ module Types
 
         field :name, GraphQL::STRING_TYPE, null: true,
               description: 'Name of the job group'
-        field :jobs, [Types::Ci::Config::JobType], null: true,
+        field :jobs, Types::Ci::Config::JobType.connection_type, null: true,
               description: 'Jobs in group'
         field :size, GraphQL::INT_TYPE, null: true,
               description: 'Size of the job group'

app/graphql/types/ci/config/job_type.rb

@@ -13,7 +13,7 @@ module Types
               description: 'Name of the job group'
         field :stage, GraphQL::STRING_TYPE, null: true,
               description: 'Name of the job stage'
-        field :needs, [Types::Ci::Config::NeedType], null: true,
+        field :needs, Types::Ci::Config::NeedType.connection_type, null: true,
               description: 'Builds that must complete before the jobs run'
       end
     end

app/graphql/types/ci/config/stage_type.rb

@@ -9,7 +9,7 @@ module Types
 
         field :name, GraphQL::STRING_TYPE, null: true,
               description: 'Name of the stage'
-        field :groups, [Types::Ci::Config::GroupType], null: true,
+        field :groups, Types::Ci::Config::GroupType.connection_type, null: true,
               description: 'Groups of jobs for the stage'
       end
     end