Bump Newtonsoft.Json in /src/Regula.DocumentReader.WebClient

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 12.0.3 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@12.0.3...13.0.1)

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

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Author: dependabot[bot]

src/Regula.DocumentReader.WebClient/Regula.DocumentReader.WebClient.csproj

@@ -14,7 +14,7 @@
   <ItemGroup>
     <PackageReference Include="JsonSubTypes" Version="1.7.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="RestSharp" Version="106.12.0" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.4.1" />
   </ItemGroup>