Fixed OpenStruct use

Fixes openstruct use in base_spec since Ruby 3 discourages internal

Changelog: changed

.rubocop_manual_todo.yml

@@ -2622,7 +2622,6 @@ Style/OpenStructUse:
     - 'spec/presenters/packages/nuget/search_results_presenter_spec.rb'
     - 'spec/requests/api/graphql/mutations/design_management/delete_spec.rb'
     - 'spec/requests/api/import_github_spec.rb'
-    - 'spec/requests/api/internal/base_spec.rb'
     - 'spec/services/packages/nuget/metadata_extraction_service_spec.rb'
     - 'spec/services/projects/import_service_spec.rb'
     - 'spec/services/system_note_service_spec.rb'

spec/requests/api/internal/base_spec.rb

@@ -948,7 +948,7 @@ RSpec.describe API::Internal::Base do
 
     context 'user does not exist' do
       it do
-        pull(OpenStruct.new(id: 0), project)
+        pull(double('key', id: 0), project)
 
         expect(response).to have_gitlab_http_status(:not_found)
         expect(json_response["status"]).to be_falsey