build: upgrade to angular v12

src/test.ts

@@ -13,13 +13,12 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
-
+import 'zone.js/testing';
 import {getTestBed} from '@angular/core/testing';
 import {
   BrowserDynamicTestingModule,
   platformBrowserDynamicTesting,
 } from '@angular/platform-browser-dynamic/testing';
-import 'zone.js/dist/zone-testing';
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 declare const require: any;