Swagger Codegen C# Generator References Vulnerable version of newtonsoft

[Christian-Oleson]

Description

https://github.com/swagger-api/swagger-codegen/blob/master/modules/swagger-codegen/src/main/resources/csharp/Project.mustache
The mustache files reference a vulnerable version of Newtonsoft
GHSA-5crp-9r3c-p9vr

Swagger-codegen version

N/a, as this involves the mustache files

Swagger declaration file content or url

N/a, as this involves the mustache files

Command line used for generation

N/a, as this involves the mustache files

Steps to reproduce

Regenerate any C# files from the csharp generator or look at the Mustache files. The files reference a vulnerable version of newtonsoft

Related issues/PRs

N/a

Suggest a fix/enhancement

Upgrade to Newtonsoft.Json v13.x