Fix Style/OpenStructUse offenses for import service and spec helpers

Changelog: other

.rubocop_todo/style/open_struct_use.yml

@@ -26,8 +26,5 @@ Style/OpenStructUse:
   - spec/lib/gitlab/gitaly_client/diff_stitcher_spec.rb
   - spec/lib/gitlab/legacy_github_import/project_creator_spec.rb
   - spec/lib/gitlab/quick_actions/command_definition_spec.rb
-  - spec/services/projects/import_service_spec.rb
   - spec/services/system_note_service_spec.rb
-  - spec/support/helpers/import_spec_helper.rb
-  - spec/support/helpers/login_helpers.rb
   - spec/support/helpers/repo_helpers.rb

spec/services/projects/import_service_spec.rb

@@ -298,7 +298,7 @@ RSpec.describe Projects::ImportService do
     end
 
     def stub_github_omniauth_provider
-      provider = OpenStruct.new(
+      provider = ActiveSupport::InheritableOptions.new(
         'name' => 'github',
         'app_id' => 'asd123',
         'app_secret' => 'asd123',

spec/support/helpers/import_spec_helper.rb

@@ -25,7 +25,7 @@ module ImportSpecHelper
   end
 
   def stub_omniauth_provider(name)
-    provider = OpenStruct.new(
+    provider = ActiveSupport::InheritableOptions.new(
       name: name,
       app_id: 'asd123',
       app_secret: 'asd123'

spec/support/helpers/login_helpers.rb

@@ -178,7 +178,7 @@ module LoginHelpers
   end
 
   def mock_saml_config
-    OpenStruct.new(name: 'saml', label: 'saml', args: {
+    ActiveSupport::InheritableOptions.new(name: 'saml', label: 'saml', args: {
       assertion_consumer_service_url: 'https://localhost:3443/users/auth/saml/callback',
       idp_cert_fingerprint: '26:43:2C:47:AF:F0:6B:D0:07:9C:AD:A3:74:FE:5D:94:5F:4E:9E:52',
       idp_sso_target_url: 'https://idp.example.com/sso/saml',