deps: bump JsonSubTypes and Newtonsoft.Json

Bumps [JsonSubTypes](https://github.com/manuc66/JsonSubTypes) and [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json). These dependencies needed to be updated together.

Updates `JsonSubTypes` from 1.8.0 to 2.0.1
- [Release notes](https://github.com/manuc66/JsonSubTypes/releases)
- [Changelog](https://github.com/manuc66/JsonSubTypes/blob/master/CHANGELOG.md)
- [Commits](manuc66/JsonSubTypes@v1.8.0...v2.0.1)

Updates `Newtonsoft.Json` from 13.0.2 to 13.0.1
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@13.0.2...13.0.1)

---
updated-dependencies:
- dependency-name: JsonSubTypes
  dependency-version: 2.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Newtonsoft.Json
  dependency-version: 13.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Src/Notion.Client/Notion.Client.csproj

@@ -20,7 +20,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
-    <PackageReference Include="JsonSubTypes" Version="1.8.0" />
+    <PackageReference Include="JsonSubTypes" Version="2.0.1" />
 	  <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="5.0.0" />
   </ItemGroup>