Merge pull request #18 from ufcpp/dependabot/nuget/tests/UnitTestNet45/Newtonsoft.Json-13.0.1

Bump Newtonsoft.Json from 10.0.3 to 13.0.1 in /tests/UnitTestNet45

Author: ufcpp

tests/UnitTestNet45/UnitTestNet45.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>