Replacing deprecated `CLIPFeatureExtractor` for `CLIPImageProcessor`

Removing warnings as part of [Comprehensive type checking for `from_pretrained` kwargs](https://github.com/huggingface/diffusers/pull/10758)

feature_extractor/preprocessor_config.json

@@ -8,13 +8,13 @@
   "do_normalize": true,
   "do_rescale": true,
   "do_resize": true,
-  "feature_extractor_type": "CLIPFeatureExtractor",
+  "feature_extractor_type": "CLIPImageProcessor",
   "image_mean": [
     0.48145466,
     0.4578275,
     0.40821073
   ],
-  "image_processor_type": "CLIPFeatureExtractor",
+  "image_processor_type": "CLIPImageProcessor",
   "image_std": [
     0.26862954,
     0.26130258,