Add ruff, remove black, isort, flake8, pylint (#3092)

* black, isort, flake8 -> ruff

* remove unused

* add back needed import

* fix

tests/e2e/patched/test_unsloth_qlora.py

@@ -12,7 +12,6 @@ from axolotl.utils.dict import DictDefault
 from ..utils import check_model_output_exists, check_tensorboard
 
 
-# pylint: disable=duplicate-code
 @pytest.mark.skip(
     reason="Unsloth integration will be broken going into latest transformers"
 )