chore(deps-dev): bump @angular-eslint/builder in /edc-policy-playground

Bumps [@angular-eslint/builder](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/builder) from 18.2.0 to 21.3.1.
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/builder/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/builder)

---
updated-dependencies:
- dependency-name: "@angular-eslint/builder"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Author: dependabot[bot]