Bump @angular/core in rest-api-typescript (#1388)

- Updates `bn.js` from 4.12.0 to 4.12.3
- Updates `minimatch` from 3.1.2 to 3.1.5
- Updates `@angular/core` from 14.3.0 to 21.2.0

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Author: dependabot[bot]

asset-transfer-basic/rest-api-typescript/package-lock.json

@@ -14,7 +14,7 @@
     "@angular/cdk": "^14.2.0",
     "@angular/common": "^21.2.0",
     "@angular/compiler": "^21.2.0",
-    "@angular/core": "^14.1.0",
+    "@angular/core": "^21.2.0",
     "@angular/forms": "^14.1.0",
     "@angular/material": "^14.2.0",
     "@angular/platform-browser": "^14.1.0",