Using correct version of NLog

Author: gnongsie

cybersource-rest-client-netstandard/cybersource-rest-client-netstandard/cybersource-rest-client-netstandard.csproj

@@ -28,7 +28,7 @@
     <PackageReference Include="CyberSource.Authentication.NetStandard" Version="0.0.1.5" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
-    <PackageReference Include="NLog" Version="4.5.10" />
+    <PackageReference Include="NLog" Version="4.7.4" />
     <PackageReference Include="RestSharp" Version="106.12.0" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.7.0" />
   </ItemGroup>