Update abstractions dependencies

[stevejgordon]

The new packages include a fix for running XPack cluster.

[Mpdreamz]

t Elastic.Elasticsearch.Ephemeral.EphemeralFileSystem.EphemeralHome(ElasticVersion version, String clusterName)
2021-02-23T12:12:24.2736842Z    at Elastic.Elasticsearch.Ephemeral.EphemeralFileSystem..ctor(ElasticVersion version, String clusterName)
2021-02-23T12:12:24.2737391Z    at Elastic.Elasticsearch.Ephemeral.EphemeralClusterConfiguration.<>c.<.ctor>b__5_0(ElasticVersion v, String s)
2021-02-23T12:12:24.2738118Z    at Elastic.Elasticsearch.Managed.Configuration.ClusterConfiguration`1..ctor(ElasticVersion version, Func`3 fileSystem, Int32 numberOfNodes, String clusterName)
2021-02-23T12:12:24.2738831Z    at Elastic.Elasticsearch.Ephemeral.EphemeralClusterConfiguration..ctor(ElasticVersion version, ClusterFeatures features, ElasticsearchPlugins plugins, Int32 numberOfNodes)
2021-02-23T12:12:24.2739562Z    at Elastic.Elasticsearch.Xunit.XunitClusterConfiguration..ctor(ElasticVersion version, ClusterFeatures features, ElasticsearchPlugins plugins, Int32 numberOfNodes)
2021-02-23T12:12:24.2740405Z    at Tests.Core.ManagedElasticsearch.Clusters.ClientTestClusterConfiguration..ctor(ClusterFeatures features, Int32 numberOfNodes, ElasticsearchPlugin[] plugins) in /home/vsts/work/1/s/tests/Tests.Core/ManagedElasticsearch/Clusters/ClientTestClusterBase.cs:line 49
2021-02-23T12:12:24.2741335Z    at Tests.Core.ManagedElasticsearch.Clusters.XPackClusterConfiguration..ctor(ClusterFeatures features) in /home/vsts/work/1/s/tests/Tests.Core/ManagedElasticsearch/Clusters/XPackCluster.cs:line 24
2021-02-23T12:12:24.2742128Z    at Tests.Core.ManagedElasticsearch.Clusters.XPackClusterConfiguration..ctor() in /home/vsts/work/1/s/tests/Tests.Core/ManagedElasticsearch/Clusters/XPackCluster.cs:line 22
2021-02-23T12:12:24.2742971Z    at Tests.XPack.MachineLearning.MachineLearningCluster..ctor() in /home/vsts/work/1/s/tests/Tests/XPack/MachineLearning/MachineLearningCluster.cs:line 19

Unit tests are failing on this update.

[stevejgordon]

@Mpdreamz Odd! #WorksOnMyMachine

[stevejgordon]

All fine on the re-run. Looks like a blip getting artefacts info which must have been fixed. Agreed with @Mpdreamz we can merge this bad boy!