Fixing Dependabot alert finding

Author: gnongsie

cybersource-rest-auth-netstandard/ApiSdk/ApiSdk/ApiSdk.csproj

@@ -19,7 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="CyberSource.Authentication.NetStandard" Version="0.0.1.4" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="NLog" Version="4.7.4" />
   </ItemGroup>