Bump ng-packagr from 16.0.1 to 16.2.3

Bumps [ng-packagr](https://github.com/ng-packagr/ng-packagr) from 16.0.1 to 16.2.3.
- [Release notes](https://github.com/ng-packagr/ng-packagr/releases)
- [Changelog](https://github.com/ng-packagr/ng-packagr/blob/16.2.3/CHANGELOG.md)
- [Commits](ng-packagr/ng-packagr@16.0.1...16.2.3)

---
updated-dependencies:
- dependency-name: ng-packagr
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]