Updated Angular to version 11

- ngx-videogular was replaced by @videogular/ngx-videogular

src/app/player/player.component.spec.ts

@@ -1,4 +1,4 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 
 import { PlayerComponent } from './player.component';
 
@@ -6,7 +6,7 @@ describe('PlayerComponent', () => {
   let component: PlayerComponent;
   let fixture: ComponentFixture<PlayerComponent>;
 
-  beforeEach(async(() => {
+  beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       declarations: [ PlayerComponent ]
     })