Bump Newtonsoft.Json from 13.0.1 to 13.0.2 in /src/TensorFlowNET.Keras

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

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

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

src/TensorFlowNET.Keras/Tensorflow.Keras.csproj

@@ -72,7 +72,7 @@ Keras is an API designed for human beings, not machines. Keras follows best prac
   <ItemGroup>
     <PackageReference Include="HDF5-CSharp" Version="1.16.2" />
     <PackageReference Include="MethodBoundaryAspect.Fody" Version="2.0.148" />
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="SharpZipLib" Version="1.4.1" />
   </ItemGroup>