build(deps): bump Newtonsoft.Json in /HslControlsDemo

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 12.0.3 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@12.0.3...13.0.2)

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

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

Author: dependabot[bot]

HslControlsDemo/packages.config

@@ -4,5 +4,5 @@
   <package id="DockPanelSuite.ThemeVS2015" version="3.0.6" targetFramework="net45" />
   <package id="HslCommunication" version="9.7.0" targetFramework="net45" />
   <package id="HslControls" version="3.3.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>