build: update license headers to reference Google LLC (#37205)

Update the license headers throughout the repository to reference Google LLC
rather than Google Inc, for the required license headers.

PR Close #37205

packages/compiler-cli/integrationtest/third_party_src/module.ts

@@ -1,6 +1,6 @@
 /**
  * @license
- * Copyright Google Inc. All Rights Reserved.
+ * Copyright 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
@@ -25,4 +25,4 @@ import {AnotherThirdPartyModule} from './other_module';
   imports: [AnotherThirdPartyModule]
 })
 export class ThirdpartyModule {
-}
+}