Fixed test issue

Author: YulNaumenko

x-pack/plugins/triggers_actions_ui/public/application/components/builtin_action_types/webhook.test.tsx

@@ -130,7 +130,6 @@ describe('WebhookActionConnectorFields renders', () => {
     expect(wrapper.find('[data-test-subj="webhookUrlText"]').length > 0).toBeTruthy();
     expect(wrapper.find('[data-test-subj="webhookUserInput"]').length > 0).toBeTruthy();
     expect(wrapper.find('[data-test-subj="webhookPasswordInput"]').length > 0).toBeTruthy();
-    expect(wrapper.find('[data-test-subj="webhookAddVariableButton"]').length > 0).toBeTruthy();
   });
 });
 
@@ -161,6 +160,7 @@ describe('WebhookParamsFields renders', () => {
         .first()
         .prop('value')
     ).toStrictEqual('test message');
+    expect(wrapper.find('[data-test-subj="webhookAddVariableButton"]').length > 0).toBeTruthy();
   });
 
   test('params validation fails when body is not valid', () => {