chore(deps): bump json_serializable from 6.6.1 to 6.6.2

Bumps [json_serializable](https://github.com/google/json_serializable.dart) from 6.6.1 to 6.6.2.
- [Commits](google/json_serializable.dart@json_serializable-v6.6.1...json_serializable-v6.6.2)

---
updated-dependencies:
- dependency-name: json_serializable
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pubspec.lock

@@ -636,14 +636,14 @@ packages:
       name: json_annotation
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.8.0"
+    version: "4.8.1"
   json_serializable:
     dependency: "direct dev"
     description:
       name: json_serializable
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.6.1"
+    version: "6.6.2"
   lints:
     dependency: transitive
     description:

pubspec.yaml

@@ -50,7 +50,7 @@ dev_dependencies:
   freezed: ^2.2.0
   google_sign_in_mocks: ^0.2.1
   http_mock_adapter: ^0.3.3
-  json_serializable: ^6.5.4
+  json_serializable: ^6.6.2
   riverpod_generator: ^2.2.1
   riverpod_lint: ^1.1.6
   very_good_analysis: ^4.0.0+1