Add missing data attribute to pipeline on ReindexDestiation (#6408)

* Add missing data attribute to pipeline on ReindexDestiation

* Fix IndexTemplateApiTests race

* Tweak wait time

* Remove wait step

Author: stevejgordon

src/Nest/Document/Multiple/ReindexOnServer/ReindexDestination.cs

@@ -5,7 +5,6 @@
 using Elasticsearch.Net;
 using System.Runtime.Serialization;
 
-
 namespace Nest
 {
 	/// <summary>
@@ -30,6 +29,7 @@ public interface IReindexDestination
 		/// <summary>
 		/// Id of the pipeline to use to process documents
 		/// </summary>
+		[DataMember(Name ="pipeline")]
 		string Pipeline { get; set; }
 
 		/// <summary>
@@ -91,6 +91,5 @@ public class ReindexDestinationDescriptor : DescriptorBase<ReindexDestinationDes
 
 		/// <inheritdoc cref="IReindexDestination.Index" />
 		public ReindexDestinationDescriptor Index(IndexName index) => Assign(index, (a, v) => a.Index = v);
-
 	}
 }

tests/Tests/Indices/IndexTemplates/IndexTemplateApiTests.cs

@@ -97,7 +97,7 @@ public IndexTemplateApiTests(WritableCluster cluster, EndpointUsage usage) : bas
 			},
 			//{"WaitStep", u => u.Call(async (v, c) =>
 			//{
-			//	await Task.Delay(2000); // allow template to be fully created
+			//	await Task.Delay(5000); // allow template to be fully created
 			//})},
 			{ExistsStep, u =>
 				u.Calls<IndexTemplateV2ExistsDescriptor, IndexTemplateV2ExistsRequest, IIndexTemplateV2ExistsRequest, ExistsResponse>(