chore: update @angular/core dependency to version 21

Author: medbenmakhlouf

yarn.lock

@@ -2723,7 +2723,7 @@ __metadata:
     typescript-eslint: "npm:^8.33.0"
     zone.js: "npm:~0.15.1"
   peerDependencies:
-    "@angular/core": ^20.0.0
+    "@angular/core": ^21.0.0
   languageName: unknown
   linkType: soft