Bump Newtonsoft.Json from 10.0.3 to 13.0.1 in /src/InEngine.Core

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 10.0.3 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@10.0.3...13.0.1)

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

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

Author: dependabot[bot]

src/InEngine.Core/InEngine.Core.csproj

@@ -18,7 +18,7 @@
     <Product>InEngine.NET</Product>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="CommandLineParser" Version="1.9.71" />
     <PackageReference Include="Quartz" Version="2.6.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="2.0.0" />