ECER-5548: Automapper validation function revised

Author: farzadnadiri

src/ECER.Tests/Unit/AutoMapperValidation.cs

@@ -1,6 +1,8 @@
 using AutoMapper;
 using AutoMapper.Extensions.EnumMapping;
 using ECER.Infrastructure.Common;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
 
 namespace ECER.Tests.Unit;
 
@@ -9,11 +11,13 @@ public class AutoMapperValidation
   [Fact]
   public void Validate()
   {
+    var loggerFactory = NullLoggerFactory.Instance;
+
     var mapperConfig = new MapperConfiguration(cfg =>
      {
        cfg.AddMaps(ReflectionExtensions.DiscoverLocalAessemblies(prefix: "ECER"));
        cfg.EnableEnumMappingValidation();
-     }, loggerFactory: null);  // v15 requires this overload
+     }, loggerFactory: loggerFactory);  // v15 requires this overload
 
     mapperConfig.AssertConfigurationIsValid();
   }