Bump @angular-devkit/build-angular in /samples/lib/spa-angular-client

Bumps [@angular-devkit/build-angular](https://github.com/angular/angular-cli) from 13.2.5 to 13.3.1.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/master/CHANGELOG.md)
- [Commits](angular/angular-cli@13.2.5...13.3.1)

---
updated-dependencies:
- dependency-name: "@angular-devkit/build-angular"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]