Fix leaky constant in factory spec

.rubocop.yml

@@ -353,7 +353,6 @@ RSpec/LeakyConstantDeclaration:
     - 'spec/lib/gitlab/ci/config/entry/retry_spec.rb'
     - 'spec/lib/gitlab/cluster/mixins/puma_cluster_spec.rb'
     - 'spec/lib/gitlab/cluster/mixins/unicorn_http_server_spec.rb'
-    - 'spec/lib/gitlab/config/entry/factory_spec.rb'
     - 'spec/lib/gitlab/config/entry/simplifiable_spec.rb'
     - 'spec/lib/gitlab/database/migration_helpers_spec.rb'
     - 'spec/lib/gitlab/database/obsolete_ignored_columns_spec.rb'

changelogs/unreleased/leaky-constant-fix-38.yml

+---
+title: Fix leaky constant issue in factory spec
+merge_request: 32174
+author: Rajendra Kadam
+type: fixed

spec/lib/gitlab/config/entry/factory_spec.rb

@@ -4,13 +4,16 @@ require 'spec_helper'
 
 describe Gitlab::Config::Entry::Factory do
   describe '#create!' do
-    class Script < Gitlab::Config::Entry::Node
+    before do
+      stub_const('Script', Class.new(Gitlab::Config::Entry::Node))
+      Script.class_eval do
         include Gitlab::Config::Entry::Validatable
 
         validations do
           validates :config, array_of_strings: true
         end
       end
+    end
 
     let(:entry) { Script }
     let(:factory) { described_class.new(entry) }