OZG-6302 fix test

alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.spec.ts

@@ -6,7 +6,7 @@ import {
   notExistsAsHtmlElement,
 } from '@alfa-client/test-utils';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-import { ButtonComponent, SaveIconComponent } from '@ods/system';
+import { ButtonComponent, CollaborationIconComponent, SaveIconComponent } from '@ods/system';
 import { CollaborationService } from 'libs/collaboration-shared/src/lib/collaboration.service';
 import { getDataTestIdOf } from 'libs/tech-shared/test/data-test';
 import { MockComponent } from 'ng-mocks';
@@ -32,6 +32,7 @@ describe('CollaborationInVorgangContainerComponent', () => {
       declarations: [
         CollaborationInVorgangContainerComponent,
         MockComponent(ZustaendigeStelleContainerComponent),
+        MockComponent(CollaborationIconComponent),
       ],
       providers: [
         {