Disable :section_codeowners FF for failing spec

ee/spec/services/ee/merge_requests/refresh_service_spec.rb

@@ -95,6 +95,11 @@ describe MergeRequests::RefreshService do
         subject
       end
 
+      context 'when :sectional_codeowners is disabled' do
+        before do
+          stub_feature_flags(sectional_codeowners: false)
+        end
+
         it 'creates an approval rule based on current diff' do
           file = File.read(Rails.root.join('ee', 'spec', 'fixtures', 'codeowners_example'))
           project.repository.create_file(owner, 'CODEOWNERS', file, { branch_name: 'test', message: 'codeowners' })
@@ -104,6 +109,7 @@ describe MergeRequests::RefreshService do
           expect(another_merge_request.approval_rules.size).to eq(3)
           expect(another_merge_request.approval_rules.first.rule_type).to eq('code_owner')
         end
+      end
 
       context 'when code owners disabled' do
         let(:enable_code_owner) { false }