Update dependency @angular/forms to v20 (#2546)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

libraries/angular/package.json

@@ -26,7 +26,7 @@
     "@angular/common": "16.2.10",
     "@angular/compiler": "16.2.10",
     "@angular/core": "16.2.10",
-    "@angular/forms": "16.2.10",
+    "@angular/forms": "20.1.6",
     "@angular/platform-browser": "16.2.10",
     "@angular/platform-browser-dynamic": "16.2.10",
     "@angular/router": "16.2.10",