Update quality tooling for formatting (#21480)

* Result of black 23.1

* Update target to Python 3.7

* Switch flake8 to ruff

* Configure isort

* Configure isort

* Apply isort with line limit

* Put the right black version

* adapt black in check copies

* Fix copies

tests/models/auto/test_modeling_flax_auto.py

@@ -20,6 +20,7 @@ from transformers.testing_utils import DUMMY_UNKNOWN_IDENTIFIER, require_flax, s
 
 if is_flax_available():
     import jax
+
     from transformers.models.auto.modeling_flax_auto import FlaxAutoModel
     from transformers.models.bert.modeling_flax_bert import FlaxBertModel
     from transformers.models.roberta.modeling_flax_roberta import FlaxRobertaModel