fixes for canary tests

Author: mydea

dev-packages/e2e-tests/test-applications/ember-classic/app/controllers/index.ts

@@ -1,5 +1,4 @@
 import Controller from '@ember/controller';
-import EmberError from '@ember/error';
 import { action } from '@ember/object';
 import { scheduleOnce } from '@ember/runloop';
 import { tracked } from '@glimmer/tracking';
@@ -16,13 +15,13 @@ export default class IndexController extends Controller {
 
   @action
   public createEmberError(): void {
-    throw new EmberError('Whoops, looks like you have an EmberError');
+    throw new Error('Whoops, looks like you have an EmberError');
   }
 
   @action
   public createCaughtEmberError(): void {
     try {
-      throw new EmberError('Looks like you have a caught EmberError');
+      throw new Error('Looks like you have a caught EmberError');
     } catch (e) {
       // do nothing
     }

dev-packages/e2e-tests/test-applications/ember-classic/package.json

@@ -25,6 +25,7 @@
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "@playwright/test": "^1.41.1",
+    "@ember/string": "^3.1.1",
     "@sentry-internal/event-proxy-server": "link:../../../event-proxy-server",
     "@sentry/ember": "latest || *",
     "@tsconfig/ember": "^3.0.6",