Replace flake8 with ruff and update black (#2279)

* before running make style

* remove left overs from flake8

* finish

* make fix-copies

* final fix

* more fixes

scripts/convert_versatile_diffusion_to_diffusers.py

@@ -18,6 +18,12 @@ import argparse
 from argparse import Namespace
 
 import torch
+from transformers import (
+    CLIPFeatureExtractor,
+    CLIPTextModelWithProjection,
+    CLIPTokenizer,
+    CLIPVisionModelWithProjection,
+)
 
 from diffusers import (
     AutoencoderKL,
@@ -31,12 +37,6 @@ from diffusers import (
     VersatileDiffusionPipeline,
 )
 from diffusers.pipelines.versatile_diffusion.modeling_text_unet import UNetFlatConditionModel
-from transformers import (
-    CLIPFeatureExtractor,
-    CLIPTextModelWithProjection,
-    CLIPTokenizer,
-    CLIPVisionModelWithProjection,
-)
 
 
 SCHEDULER_CONFIG = Namespace(