chore(deps): update dependency ng-packagr to v20.3.0

Author: renovate[bot]

package.json

@@ -45,7 +45,7 @@
     "eslint": "^9.26.0",
     "globals": "^16.1.0",
     "jsdom": "^26.1.0",
-    "ng-packagr": "20.2.0",
+    "ng-packagr": "20.3.0",
     "playwright": "^1.52.0",
     "prettier": "~3.6.0",
     "prettier-plugin-organize-imports": "^4.1.0",