Convert security dashboard component tests to jest

- as part of GitLab's initiative
- Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/209127
- Relates to https://gitlab.com/groups/gitlab-org/-/epics/895

ee/spec/javascripts/security_dashboard/components/filters_spec.js → ee/spec/frontend/security_dashboard/components/filters_spec.js

 import Vue from 'vue';
 import component from 'ee/security_dashboard/components/filters.vue';
 import createStore from 'ee/security_dashboard/store';
-import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { mountComponentWithStore } from 'helpers/vue_mount_component_helper';
 
 describe('Filter component', () => {
   let vm;

ee/spec/javascripts/security_dashboard/components/vulnerability_action_buttons_spec.js → ee/spec/frontend/security_dashboard/components/vulnerability_action_buttons_spec.js

@@ -2,7 +2,7 @@ import Vue from 'vue';
 import component from 'ee/security_dashboard/components/vulnerability_action_buttons.vue';
 
 import createStore from 'ee/security_dashboard/store';
-import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { mountComponentWithStore } from 'helpers/vue_mount_component_helper';
 import { resetStore } from '../helpers';
 import mockDataVulnerabilities from '../store/vulnerabilities/data/mock_data_vulnerabilities';
 
@@ -29,7 +29,7 @@ describe('Security Dashboard Action Buttons', () => {
         canDismissVulnerability: true,
       };
       vm = mountComponentWithStore(Component, { store, props });
-      spyOn(vm.$store, 'dispatch').and.returnValue(Promise.resolve());
+      jest.spyOn(vm.$store, 'dispatch').mockReturnValue(Promise.resolve());
     });
 
     afterEach(() => {

ee/spec/javascripts/security_dashboard/components/vulnerability_chart_button_spec.js → ee/spec/frontend/security_dashboard/components/vulnerability_chart_button_spec.js

@@ -58,7 +58,7 @@ describe('Vulnerability Chart Buttons', () => {
     });
 
     it('should call the clickHandler', () => {
-      spyOn(wrapper.vm, 'clickHandler').and.stub();
+      jest.spyOn(wrapper.vm, 'clickHandler');
       wrapper.find('[data-days="30"].active').trigger('click', DAYS.THIRTY);
 
       expect(wrapper.vm.clickHandler).toHaveBeenCalledWith(DAYS.THIRTY);

ee/spec/javascripts/security_dashboard/components/vulnerability_count_list_spec.js → ee/spec/frontend/security_dashboard/components/vulnerability_count_list_spec.js

 import Vue from 'vue';
 import component from 'ee/security_dashboard/components/vulnerability_count_list.vue';
 import createStore from 'ee/security_dashboard/store';
-import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { mountComponentWithStore } from 'helpers/vue_mount_component_helper';
 import { resetStore } from '../helpers';
 import mockData from '../store/vulnerabilities/data/mock_data_vulnerabilities_count.json';
 

ee/spec/javascripts/security_dashboard/components/vulnerability_count_spec.js → ee/spec/frontend/security_dashboard/components/vulnerability_count_spec.js

 import Vue from 'vue';
 import component from 'ee/security_dashboard/components/vulnerability_count.vue';
-import mountComponent from 'spec/helpers/vue_mount_component_helper';
+import mountComponent from 'helpers/vue_mount_component_helper';
 
 describe('Vulnerability Count', () => {
   const Component = Vue.extend(component);

ee/spec/javascripts/security_dashboard/components/vulnerability_issue_link_spec.js → ee/spec/frontend/security_dashboard/components/vulnerability_issue_link_spec.js

 import Vue from 'vue';
 import component from 'ee/security_dashboard/components/vulnerability_issue_link.vue';
-import mountComponent from 'spec/helpers/vue_mount_component_helper';
+import mountComponent from 'helpers/vue_mount_component_helper';
 
 describe('Vulnerability Issue Link component', () => {
   const Component = Vue.extend(component);