Dependencies: Update dependency @angular/core to v21.2.19 [SECURITY]

Author: renovate[bot]

client/package.json

@@ -38,7 +38,7 @@
     "@angular/cdk": "21.2.14",
     "@angular/common": "21.2.17",
     "@angular/compiler": "21.2.17",
-    "@angular/core": "21.2.17",
+    "@angular/core": "21.2.19",
     "@angular/forms": "21.2.17",
     "@angular/platform-browser": "21.2.17",
     "@angular/platform-browser-dynamic": "21.2.17",