fix: use open_in_new_tab in the render method. (#926)

Author: taiseiak

google/cloud/aiplatform/explain/lit.py

@@ -206,8 +206,8 @@ def open_lit(
  Raises:
  ImportError if LIT is not installed.
  """
- widget = notebook.LitWidget(models, datasets, open_in_new_tab=open_in_new_tab)
- widget.render()
+ widget = notebook.LitWidget(models, datasets)
+ widget.render(open_in_new_tab=open_in_new_tab)
 
 
 def set_up_and_open_lit(