Set AzureTenantId from options

Author: mattosaurus

src/Serilog.Sinks.MSSqlServer/Configuration/Implementations/Microsoft.Extensions.Configuration/MicrosoftExtensionsSinkOptionsProvider.cs

@@ -38,6 +38,7 @@ private static void ReadAzureManagedIdentitiesOptions(IConfigurationSection conf
         {
             SetProperty.IfNotNull<bool>(config["useAzureManagedIdentity"], val => sinkOptions.UseAzureManagedIdentity = val);
             SetProperty.IfNotNull<string>(config["azureServiceTokenProviderResource"], val => sinkOptions.AzureServiceTokenProviderResource = val);
+            SetProperty.IfNotNull<string>(config["azureTenantId"], val => sinkOptions.AzureTenantId = val);
         }
     }
 }