`image_processor_type` instead of `feature_extractor_type`

preprocessor_config.json

@@ -3,7 +3,7 @@
   "do_center_crop": true,
   "do_normalize": true,
   "do_resize": true,
-  "feature_extractor_type": "CLIPFeatureExtractor",
+  "image_processor_type": "CLIPFeatureExtractor",
   "image_mean": [
     0.48145466,
     0.4578275,