Bump Newtonsoft.Json in /src/ResourceManager/Sql/Commands.Sql.Test

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 6.0.4 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@6.0.4...13.0.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/ResourceManager/Sql/Commands.Sql.Test/packages.config

@@ -15,7 +15,7 @@
   <package id="Microsoft.WindowsAzure.Common.Dependencies" version="1.1.0" targetFramework="net45" />
   <package id="Microsoft.WindowsAzure.Management.Storage" version="3.1.0" targetFramework="net45" />
   <package id="Moq" version="4.2.1402.2112" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="xunit" version="1.9.2" targetFramework="net45" />
   <package id="xunit.extensions" version="1.9.2" targetFramework="net45" />
 </packages>