Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
One particular scenario where this was causing problems was when the [BackupFileCleaner][1] restored a file (such as a `.d.ts` file) by [moving the backup file][2] to its original location, but the modified content was kept in the cache. [1]: https://github.com/angular/angular/blob/4d36b2f6e/packages/compiler-cli/ngcc/src/writing/cleaning/cleaning_strategies.ts#L54 [2]: https://github.com/angular/angular/blob/4d36b2f6e/packages/compiler-cli/ngcc/src/writing/cleaning/cleaning_strategies.ts#L61 Fixes #35095 PR Close #35106