Upgrade to angular v11

overlord/src/app/profit-loss/profit-loss.component.spec.ts

@@ -1,4 +1,4 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 import { ReactiveFormsModule } from '@angular/forms';
 import { RouterTestingModule } from '@angular/router/testing';
 
@@ -8,7 +8,7 @@ describe('ProfitLossComponent', () => {
   let component: ProfitLossComponent;
   let fixture: ComponentFixture<ProfitLossComponent>;
 
-  beforeEach(async(() => {
+  beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       imports: [ReactiveFormsModule, RouterTestingModule],
       declarations: [ProfitLossComponent],