build(deps-dev): bump ng-packagr from 21.0.1 to 21.1.0 (#2910)

Bumps [ng-packagr](https://github.com/ng-packagr/ng-packagr) from 21.0.1 to 21.1.0.
- [Release notes](https://github.com/ng-packagr/ng-packagr/releases)
- [Changelog](https://github.com/ng-packagr/ng-packagr/blob/main/CHANGELOG.md)
- [Commits](ng-packagr/ng-packagr@21.0.1...21.1.0)

---
updated-dependencies:
- dependency-name: ng-packagr
  dependency-version: 21.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

package-lock.json

@@ -56,7 +56,7 @@
     "karma-coverage-istanbul-reporter": "^3.0.3",
     "karma-jasmine": "^5.1.0",
     "karma-jasmine-html-reporter": "^2.1.0",
-    "ng-packagr": "^21.0.0",
+    "ng-packagr": "^21.1.0",
     "prettier": "^3.8.0",
     "release-plan": "^0.17.0",
     "ts-node": "~10.9.2",