Update dependency Newtonsoft.Json to v12.0.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
Newtonsoft.Json (source)	nuget	patch	12.0.2 -> 12.0.3
Newtonsoft.Json (source)	nuget	patch	12.0.1 -> 12.0.3

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Release Notes

JamesNK/Newtonsoft.Json

v12.0.3

Compare Source

• New feature - Added support for nullable reference types
• New feature - Added KebabCaseNamingStrategy
• Change - Package now uses embedded package icon
• Fix - Fixed bug when merging JToken with itself
• Fix - Fixed performance of calling ICustomTypeDescriptor.GetProperties
• Fix - Fixed serializing Enumerable.Empty and empty arrays on .NET Core 3.0
• Fix - Fixed deserializing some collection types with constructor
• Fix - Fixed deserializing IImmutableSet to ImmutableHashSet instead of ImmutableSortedSet
• Fix - Fixed deserializing IImmutableDictionary to ImmutableDictionary instead of ImmutableSortedDictionary
• Fix - Fixed deserializing into constructors with more than 256 parameters
• Fix - Fixed hang when deserializing JTokenReader with preceding comment
• Fix - Fixed JSONPath scanning with nested indexer
• Fix - Fixed deserializing incomplete JSON object to JObject
• Fix - Fixed using StringEnumConverter with naming strategy and specified values

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