Boostrap specs for list type [skip ci]

ee/spec/frontend/vulnerabilities/generic_report/types/list_spec.js

+import { shallowMount } from '@vue/test-utils';
+import List from 'ee/vulnerabilities/components/generic_report/types/list.vue';
+
+describe('EE - GenericReport - Types - List', () => {
+  let wrapper;
+
+  const createWrapper = () => {
+    return shallowMount(List, {
+      propsData: {
+        items: [],
+      },
+    });
+  };
+
+  beforeEach(() => {
+    wrapper = createWrapper();
+  });
+
+  it('renders', () => {
+    expect(wrapper.findComponent(List).exists()).toBe(true);
+  });
+});