Fix missing argument

Signed-off-by: Pavel Abramov <uncle.decart@gmail.com>

Author: uncleDecart

main.py

@@ -189,7 +189,7 @@ def run_test(
         elif test == "iperf3":
             return self._run_iperf3(docker_cmd, l3_cache_mask, t_core)
         elif test == "mega-benchmark":
-            return self._run_megabench(t_core)
+            return self._run_megabench(docker_cmd, t_core)
         else:
             print(f"Error: Test '{test}' is not implemented")
             return 1