Bump @angular/cli from 8.3.18 to 12.1.4

Bumps [@angular/cli](https://github.com/angular/angular-cli) from 8.3.18 to 12.1.4.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/master/CHANGELOG.md)
- [Commits](angular/angular-cli@v8.3.18...12.1.4)

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Author: dependabot-preview[bot]