Bump Newtonsoft.Json from 10.0.2 to 13.0.2 in /DotJEM.Json.Storage.Test

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 10.0.2 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@10.0.2...13.0.2)

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

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

Author: dependabot[bot]

DotJEM.Json.Storage.Test/packages.config

@@ -2,7 +2,7 @@
 <packages>
   <package id="Moq" version="4.2.1502.0911" targetFramework="net45" />
   <package id="Moq.AutoMock" version="0.3.2.1" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.2" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="NUnit" version="2.6.4" targetFramework="net45" />
   <package id="System.Reactive" version="5.0.0" targetFramework="net48" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.3" targetFramework="net48" />