test: fix test assertions breaking due to license change

Fixes that the stackblitz writer tests fail due to the license
bump from 2021 to 2022, but the tests not reflecting that.

Author: devversion

src/app/shared/stack-blitz/stack-blitz-writer.spec.ts

@@ -115,7 +115,7 @@ describe('StackBlitzWriter', () => {
       'src/app/app.module.ts': `import {ExampleComponent, AdditionalComp} from './test';`,
       'src/app/test.ts': `ExampleComponent
 
-/**  Copyright 2021 Google LLC. All Rights Reserved.
+/**  Copyright ${new Date().getFullYear()} Google LLC. All Rights Reserved.
     Use of this source code is governed by an MIT-style license that
     can be found in the LICENSE file at https://angular.io/license */`,
     });

src/app/shared/stack-blitz/stack-blitz-writer.ts

@@ -24,7 +24,7 @@ const TEMPLATE_PATH = '/assets/stack-blitz/';
 /**
  * List of boilerplate files for an example StackBlitz.
  * This currently matches files needed for a basic Angular CLI project.
- * 
+ *
  * Note: The template files match up with a basic app generated through `ng new`.
  * StackBlitz does not support binary files like `favicon.ico`, so we removed that
  * file from the boilerplate.