Bump Newtonsoft.Json in /sandbox/PerfBenchmarkDotNet

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 10.0.3 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@10.0.3...13.0.2)

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

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Author: dependabot[bot]

sandbox/PerfBenchmarkDotNet/packages.config

@@ -15,7 +15,7 @@
   <package id="Microsoft.DotNet.PlatformAbstractions" version="1.1.1" targetFramework="net461" />
   <package id="Microsoft.Win32.Registry" version="4.3.0" targetFramework="net461" />
   <package id="MsgPack.Cli" version="0.9.0-rc1" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net461" />
   <package id="protobuf-net" version="2.3.2" targetFramework="net461" />
   <package id="Sigil" version="4.7.0" targetFramework="net461" />
   <package id="System.AppContext" version="4.3.0" targetFramework="net461" />