Bump @angular/core from 9.0.0 to 11.0.9

Bumps [@angular/core](https://github.com/angular/angular/tree/HEAD/packages/core) from 9.0.0 to 11.0.9.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/11.0.9/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/11.0.9/packages/core)

---
updated-dependencies:
- dependency-name: "@angular/core"
  dependency-type: indirect
...

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