Bump Newtonsoft.Json from 12.0.1 to 13.0.1 in /UmbracoPackages

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 12.0.1 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](https://github.com/JamesNK/Newtonsoft.Json/compare/12.0.1...13.0.1)

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

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

UmbracoPackages/packages.config

@@ -40,7 +40,7 @@
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net472" />
   <package id="MiniProfiler" version="4.0.138" targetFramework="net472" />
   <package id="MiniProfiler.Shared" version="4.0.138" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net472" />
   <package id="NPoco" version="3.9.4" targetFramework="net472" />
   <package id="Owin" version="1.0" targetFramework="net472" />
   <package id="Semver" version="2.0.4" targetFramework="net472" />