Support System.Text.Json JsonStringEnumMemberNameAttribute

[bdovaz]

Added in 9.0.0: dotnet/runtime#74385

I think it should only affect:

NJsonSchema/src/NJsonSchema.CodeGeneration.CSharp/Templates/Enum.liquid

Line 15 in 9bf8f69

[System.Runtime.Serialization.EnumMember(Value = @"{{ enum.Value | replace: '"', '""' }}")]

And maybe?

NJsonSchema/src/NJsonSchema/Generation/JsonSchemaGenerator.cs

Line 717 in 9bf8f69

var enumMemberAttribute = contextualType.Type.GetRuntimeField(enumName)?.GetCustomAttribute<EnumMemberAttribute>();

[desjoerd]

Currently we do this in the file Enum.Member.Annotations.liquid. Maybe it's helpfull for someone :).

{%  if IsStringEnum %}
    [System.Text.Json.Serialization.JsonStringEnumMemberName(@"{{ enum.Value | replace: '"', '""' }}")]
{% endif %}

This is only usefull when generating the Client from openapi.