Bump Newtonsoft.Json in /BotAndCognitive/DialogBotSample

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 9.0.1 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@9.0.1...13.0.1)

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

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Author: dependabot[bot]

BotAndCognitive/DialogBotSample/packages.config

@@ -27,7 +27,7 @@
   <package id="Microsoft.Net.Compilers" version="1.2.1" targetFramework="net46" developmentDependency="true" />
   <package id="Microsoft.Rest.ClientRuntime" version="2.3.2" targetFramework="net46" />
   <package id="Microsoft.WindowsAzure.ConfigurationManager" version="3.2.1" targetFramework="net46" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net46" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net46" />
   <package id="System.IdentityModel.Tokens.Jwt" version="5.1.4" targetFramework="net46" />
   <package id="System.Spatial" version="5.6.4" targetFramework="net46" />
   <package id="WindowsAzure.Storage" version="7.2.1" targetFramework="net46" />