Set bench HttpClient timeout to 4 minutes.

Author: liammclennan

src/SeqCli/Cli/Commands/Bench/BenchCommand.cs

@@ -123,6 +123,7 @@ protected override async Task<int> Run()
         {
             var (_, apiKey) = _connectionFactory.GetConnectionDetails(_connection);
             var connection = _connectionFactory.Connect(_connection);
+            connection.Client.HttpClient.Timeout = TimeSpan.FromMinutes(4);
             var seqVersion = (await connection.Client.GetRootAsync()).Version;
             await using var reportingLogger = BuildReportingLogger();