fix: samples/client/petstore/typescript-angular-v19/package.json & samples/client/petstore/typescript-angular-v19/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANGULARCORE-15353393

Author: snyk-bot

samples/client/petstore/typescript-angular-v19/package-lock.json

@@ -13,7 +13,7 @@
     "@angular/animations": "^19.0.0",
     "@angular/common": "^19.0.0",
     "@angular/compiler": "^19.0.0",
-    "@angular/core": "^19.0.0",
+    "@angular/core": "^19.2.19",
     "@angular/forms": "^19.0.0",
     "@angular/platform-browser": "^19.0.0",
     "@angular/platform-browser-dynamic": "^19.0.0",