Enable frozen string in app/graphql + app/finders

Partially addresses #47424.

app/graphql/types/ci/pipeline_type.rb

+# frozen_string_literal: true
+
 module Types
   module Ci
     class PipelineType < BaseObject

app/graphql/types/merge_request_type.rb

+# frozen_string_literal: true
+
 module Types
   class MergeRequestType < BaseObject
     expose_permissions Types::PermissionTypes::MergeRequest

app/graphql/types/permission_types/base_permission_type.rb

+# frozen_string_literal: true
+
 module Types
   module PermissionTypes
     class BasePermissionType < BaseObject

app/graphql/types/permission_types/ci/pipeline.rb

+# frozen_string_literal: true
+
 module Types
   module PermissionTypes
     module Ci

app/graphql/types/permission_types/merge_request.rb

+# frozen_string_literal: true
+
 module Types
   module PermissionTypes
     class MergeRequest < BasePermissionType

app/graphql/types/permission_types/project.rb

+# frozen_string_literal: true
+
 module Types
   module PermissionTypes
     class Project < BasePermissionType

app/graphql/types/project_type.rb

+# frozen_string_literal: true
+
 module Types
   class ProjectType < BaseObject
     expose_permissions Types::PermissionTypes::Project

app/graphql/types/query_type.rb

+# frozen_string_literal: true
+
 module Types
   class QueryType < BaseObject
     graphql_name 'Query'

app/graphql/types/time_type.rb

+# frozen_string_literal: true
+
 module Types
   class TimeType < BaseScalar
     graphql_name 'Time'

changelogs/unreleased/frozen-string-app-finders-graphql.yml

+---
+title: Enable frozen string in app/graphql + app/finders
+merge_request:
+author: gfyoung
+type: performance