Fix Lint errors

Author: akksi

components/dash-table/tests/selenium/test_basic_copy_paste.py

@@ -173,6 +173,7 @@ def test_tbcp004_copy_9_and_10(test):
 
     assert test.get_log_errors() == []
 
+
 @pytest.mark.skip(
     reason="Prop `data_previous` is not correctly updated with copy+paste"
 )
@@ -278,6 +279,7 @@ def test_tbcp008_copy_paste_between_tables_with_hidden_columns(test):
 
     assert test.get_log_errors() == []
 
+
 def test_tbcp009_copy_9_and_10_click(test):
     test.start_server(get_app())