fix: bump angular-eslint from 19.8.1 to 21.1.0

Bumps [angular-eslint](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/angular-eslint) from 19.8.1 to 21.1.0.
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/angular-eslint/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.1.0/packages/angular-eslint)

---
updated-dependencies:
- dependency-name: angular-eslint
  dependency-version: 21.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]