S3 repo settings: path style access (#4136)

Add support for S3 repo settings: path style access: elastic/elasticsearch#41966

(cherry picked from commit 6b0afaa)

src/Nest/Modules/SnapshotAndRestore/Repositories/S3Repository.cs

@@ -92,6 +92,14 @@ public interface IS3RepositorySettings : IRepositorySettings
 		/// </summary>
 		[DataMember(Name ="storage_class")]
 		string StorageClass { get; set; }
+
+		/// <summary>
+		///  Whether to force the use of the path style access pattern. If `true`, the
+		// path style access pattern will be used. If `false`, the access pattern will
+		// be automatically determined by the AWS Java SDK used internally by Elasticsearch
+		/// </summary>
+		[DataMember(Name = "path_style_access")]
+		bool? PathStyleAccess { get; set; }
 	}
 
 	/// <inheritdoc />
@@ -127,6 +135,9 @@ internal S3RepositorySettings() { }
 
 		/// <inheritdoc />
 		public string StorageClass { get; set; }
+
+		/// <inheritdoc />
+		public bool? PathStyleAccess { get; set; }
 	}
 
 	/// <inheritdoc cref="IS3RepositorySettings"/>
@@ -144,6 +155,7 @@ public class S3RepositorySettingsDescriptor
 		bool? IS3RepositorySettings.Compress { get; set; }
 		bool? IS3RepositorySettings.ServerSideEncryption { get; set; }
 		string IS3RepositorySettings.StorageClass { get; set; }
+		bool? IS3RepositorySettings.PathStyleAccess { get; set; }
 
 		/// <inheritdoc cref="IS3RepositorySettings.Bucket" />
 		public S3RepositorySettingsDescriptor Bucket(string bucket) => Assign(bucket, (a, v) => a.Bucket = v);
@@ -172,6 +184,10 @@ public S3RepositorySettingsDescriptor ServerSideEncryption(bool? serverSideEncry
 
 		/// <inheritdoc cref="IS3RepositorySettings.StorageClass" />
 		public S3RepositorySettingsDescriptor StorageClass(string storageClass) => Assign(storageClass, (a, v) => a.StorageClass = v);
+
+		/// <inheritdoc cref="IS3RepositorySettings.PathStyleAccess" />
+		public S3RepositorySettingsDescriptor PathStyleAccess(bool? pathStyleAccess = true) =>
+			Assign(pathStyleAccess, (a, v) => a.PathStyleAccess = v);
 	}
 
 	/// <inheritdoc cref="IS3Repository"/>