Bump Newtonsoft.Json from 11.0.2 to 13.0.2 in /Elements/src

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 11.0.2 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@11.0.2...13.0.2)

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

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

Elements/src/Elements.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="glTF2Loader" Version="1.1.3-alpha" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="3.11.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="SixLabors.Fonts" Version="1.0.0-beta15" />
     <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta13" />