Fix integration tests

Signed-off-by: Thomas Farr <[email protected]>

abstractions/src/OpenSearch.OpenSearch.Ephemeral/Tasks/InstallationTasks/InstallPlugins.cs

@@ -99,7 +99,7 @@ public override void Run(IEphemeralCluster<EphemeralClusterConfiguration> cluste
 					cluster.Writer,
 					fs.PluginBinary,
 					$"install opensearch plugin: {plugin.SubProductName}",
-					"install --batch", GetPluginLocation(plugin, v));
+					"install", "--batch", GetPluginLocation(plugin, v));
 
 				CopyConfigDirectoryToHomeCacheConfigDirectory(cluster, plugin);
 			}