Reduce vulnerabilities count in trait to 2

ee/spec/factories/projects.rb

@@ -92,7 +92,7 @@ FactoryBot.modify do
 
     trait :with_vulnerabilities do
       after(:create) do |project|
-        create_list(:vulnerability, 3, :opened, project: project)
+        create_list(:vulnerability, 2, :opened, project: project)
       end
     end
   end

ee/spec/requests/api/vulnerabilities_spec.rb

@@ -31,7 +31,7 @@ describe API::Vulnerabilities do
         get api("#{project_vulnerabilities_path}?page=2&per_page=1", user)
 
         expect(response).to have_gitlab_http_status(200)
-        expect(json_response.map { |v| v['id'] }).to contain_exactly(project.vulnerabilities.drop(1).take(1).first.id)
+        expect(json_response.map { |v| v['id'] }).to contain_exactly(project.vulnerabilities.second.id)
       end
     end