Bump @angular/forms from 21.2.16 to 22.0.0 in /web_embedding/ng-flutter

Bumps [@angular/forms](https://github.com/angular/angular/tree/HEAD/packages/forms) from 21.2.16 to 22.0.0.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/v22.0.0/packages/forms)

---
updated-dependencies:
- dependency-name: "@angular/forms"
  dependency-version: 22.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

web_embedding/ng-flutter/package.json

@@ -16,7 +16,7 @@
     "@angular/common": "^21.1.1",
     "@angular/compiler": "^21.1.0",
     "@angular/core": "^21.2.0",
-    "@angular/forms": "^21.1.0",
+    "@angular/forms": "^22.0.0",
     "@angular/material": "^21.1.1",
     "@angular/platform-browser": "^21.2.0",
     "@angular/platform-browser-dynamic": "^21.1.2",