Bump the npm_and_yarn group across 1 directory with 2 updates

Bumps the npm_and_yarn group with 2 updates in the /frontend/APIAlumno directory: [@angular/compiler](https://github.com/angular/angular/tree/HEAD/packages/compiler) and [flatted](https://github.com/WebReflection/flatted).


Updates `@angular/compiler` from 21.2.2 to 21.2.4
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/v21.2.4/packages/compiler)

Updates `flatted` from 3.3.1 to 3.4.2
- [Commits](WebReflection/flatted@v3.3.1...v3.4.2)

---
updated-dependencies:
- dependency-name: "@angular/compiler"
  dependency-version: 21.2.4
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: flatted
  dependency-version: 3.4.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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Author: dependabot[bot]