package:json_serializable v6.11.0

• Support JsonKey annotation on constructor parameters.
• Require analyzer: '>=7.4.0 <9.0.0'
• Require dart_style: ^3.0.0
• Require meta: ^1.15.0
• Require source_helper: ^1.3.6
• Require source_gen: ^3.1.0, stop using deprecated TypeChecker.fromRuntime
  and use the new TypeChecker.typeNamed instead.