Bump Newtonsoft.Json from 11.0.2 to 13.0.1 in /WebApi

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 11.0.2 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@11.0.2...13.0.1)

---
updated-dependencies:
- dependency-name: Newtonsoft.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Core/Core.csproj

@@ -17,7 +17,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="2.1.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Collections.Immutable" Version="1.5.0" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.5.0" />
   </ItemGroup>

WebApi/packages.config

@@ -21,7 +21,7 @@
   <package id="Microsoft.Owin" version="3.1.0" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net461" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="NLog" version="4.5.10" targetFramework="net461" />
   <package id="Owin" version="1.0" targetFramework="net461" />
   <package id="Pipelines.Sockets.Unofficial" version="1.0.0" targetFramework="net461" />