build(deps): bump @angular/core

Bumps [@angular/core](https://github.com/angular/angular/tree/HEAD/packages/core) from 20.3.5 to 20.3.16.
- [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/v20.3.16/packages/core)

---
updated-dependencies:
- dependency-name: "@angular/core"
  dependency-version: 20.3.16
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

samples/client/petstore/typescript-angular-v20-provided-in-root/package-lock.json

@@ -14,7 +14,7 @@
     "@angular/animations": "^20.0.0",
     "@angular/common": "^20.0.0",
     "@angular/compiler": "^20.0.0",
-    "@angular/core": "^20.0.0",
+    "@angular/core": "^20.3.16",
     "@angular/forms": "^20.0.0",
     "@angular/platform-browser": "^20.0.0",
     "@angular/platform-browser-dynamic": "^20.0.0",