infra/helper: pass the right arguments to docker_run in reproduce_impl (#14178)

```
def docker_run(run_args, print_output=True, architecture='x86_64'):
  """Calls `docker run`."""
```

the argument of `docker_run`(that is `run_function`) is `print_output`
and I don't think `err_result` had the same meaning.

Without this patch, using `infra/helper.py reproduce` does not produce
any output because the docker stdout is not printed.

Author: ret2libc

infra/helper.py

@@ -1665,7 +1665,7 @@ def reproduce_impl(  # pylint: disable=too-many-arguments
       fuzzer_name,
       '-runs=100',
   ] + fuzzer_args
-  return run_function(run_args, err_result)
+  return run_function(run_args, architecture=architecture)
 
 
 def _validate_project_name(project_name):