Draft: Enable multi-thread for Sprucing throughput test

Work towards lhcb-dpa/project#300.

Include this MR and lhcb-datapkg/PRConfig!394 (closed) in a ci-test so that the Sprucing throughput test will be run multi-threaded and the original throughput number will be restored.

NOT for merge, test only.

Hlt/Hlt2Conf/options/sprucing/spruce_all_lines.py

@@ -28,8 +28,8 @@ from Hlt2Conf.sprucing_settings.fixed_line_configs import lines_for_TISTOS_BW_Au
 metainfo_repos.global_bind(extra_central_tags=['key-7e074b7d'])
 options.input_raw_format = 0.3
 options.input_process = 'Hlt2'
-options.output_file = "spruce_all_lines.dst"
-options.output_type = "ROOT"
+options.output_file = "spruce_all_lines.mdf"
+options.output_type = "MDF"
 
 
 def make_lines():