Update to nuget with serializable error code strings (#1998)

https://github.com/microsoft/sqltoolsservice/pull/1998

src/Microsoft.SqlTools.Migration/Contracts/StartLoginMigration.cs

@@ -79,7 +79,7 @@ namespace Microsoft.SqlTools.Migration.Contracts
     public class LoginMigrationResult
     {
         /// <summary>
-        /// Start time of the assessment
+        /// Exceptions per logins
         /// </summary>
         public IDictionary<string, IEnumerable<LoginMigrationException>> ExceptionMap { get; set; }