chore(deps): bump the built_value group across 1 directory with 4 upd…

…ates

Bumps the built_value group with 4 updates in the /packages/auth/amplify_auth_cognito_dart directory: [built_value](https://github.com/google/built_value.dart), [built_value_generator](https://github.com/google/built_value.dart), [win32_registry](https://github.com/halildurmus/win32_registry) and [ffigen](https://github.com/dart-lang/native/tree/main/pkgs).


Updates `built_value` from 8.8.1 to 8.9.2
- [Release notes](https://github.com/google/built_value.dart/releases)
- [Changelog](https://github.com/google/built_value.dart/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/built_value.dart/commits/v8.9.2)

Updates `built_value_generator` from 8.8.1 to 8.9.2
- [Release notes](https://github.com/google/built_value.dart/releases)
- [Changelog](https://github.com/google/built_value.dart/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/built_value.dart/commits/v8.9.2)

Updates `win32_registry` from 1.1.5 to 2.0.0
- [Release notes](https://github.com/halildurmus/win32_registry/releases)
- [Changelog](https://github.com/halildurmus/win32_registry/blob/main/CHANGELOG.md)
- [Commits](halildurmus/win32_registry@v1.1.5...v2.0.0)

Updates `ffigen` from 9.0.1 to 15.0.0
- [Release notes](https://github.com/dart-lang/native/releases)
- [Commits](https://github.com/dart-lang/native/commits/HEAD/pkgs)

---
updated-dependencies:
- dependency-name: built_value
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: built_value
- dependency-name: built_value_generator
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: built_value
- dependency-name: win32_registry
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: built_value
- dependency-name: ffigen
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: built_value
...

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

packages/auth/amplify_auth_cognito_dart/pubspec.yaml

@@ -35,7 +35,7 @@ dependencies:
   stream_transform: ^2.0.0
   uuid: ">=3.0.6 <5.0.0"
   win32: ">=4.1.2 <6.0.0"
-  win32_registry: ^1.1.0
+  win32_registry: ">=1.1.0 <3.0.0"
   worker_bee: ">=0.3.3 <0.4.0"
 
 dev_dependencies:
@@ -44,8 +44,8 @@ dev_dependencies:
   build_runner: ^2.4.9
   build_verify: ^3.0.0
   build_web_compilers: ^4.0.0
-  built_value_generator: 8.8.1
-  ffigen: ^9.0.0
+  built_value_generator: 8.9.2
+  ffigen: ">=9.0.0 <16.0.0"
   json_serializable: 6.8.0
   mockito: ^5.0.0
   smithy_codegen: