Update json_annotation and json_serializable

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
json_annotation (source)	dependencies	minor	4.11.0 → 4.12.0
json_serializable (source)	dev_dependencies	minor	6.13.0 → 6.14.0
mockito (source)	dev_dependencies	patch	5.6.3 → 5.6.5

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Release Notes

google/json_serializable.dart (json_annotation)

v4.12.0

Compare Source

• Add JsonKey.explicitJsonNullWhenNonNullField for PATCH-style tri-state JSON
  fields (omit key vs explicit null vs value).

google/json_serializable.dart (json_serializable)

v6.14.0

Compare Source

• Support JsonKey.explicitJsonNullWhenNonNullField for PATCH-style tri-state
  JSON fields: distinguish omitted keys from explicit null in fromJson and
  emit explicit JSON null in toJson when the Dart field is non-null.
• Require json_annotation: '>=4.12.0 <4.13.0'

v6.13.2

Compare Source

• Require analyzer: '>=10.0.0 <14.0.0'

v6.13.1

Compare Source

• Improve error message when generating code for Record types with unsupported
  fields.
  (#​1559)
• Require analyzer: '>=10.0.0 <13.0.0'
• Require build: ^4.0.4
• Require dart_style: ^3.1.4
• Require source_gen: ^4.1.2
• Require source_helper: ^1.3.10

dart-lang/build (mockito)

v5.6.5

Compare Source

• Require analyzer 13.0.0.

v5.6.4

• Allow analyzer 11.0.0 and 12.0.0.
• Move to dart-lang/build monorepo.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: pubspec.lock

Command failed: flutter pub upgrade json_annotation json_serializable mockito
Because riverpod_generator 4.0.3 depends on analyzer ^9.0.0 and mockito >=5.6.5 depends on analyzer ^13.0.0, riverpod_generator 4.0.3 is incompatible with mockito >=5.6.5.
So, because dotto depends on both mockito 5.6.5 and riverpod_generator 4.0.3, version solving failed.
Failed to update packages.

[github-actions]

	1 Warning
⚠️	重要なファイルが変更されています: pubspec.yaml

	2 Messages
📖	pubspec.yamlが変更されています。task installを実行してください。
📖	Dangerのチェックが完了しました! 🎉

Generated by 🚫 Danger