Fix deprecation warning by changing `CLIPFeatureExtractor` to `CLIPImageProcessor`.

model_index.json

@@ -3,7 +3,7 @@
   "_diffusers_version": "0.11.0.dev0",
   "feature_extractor": [
     "transformers",
-    "CLIPFeatureExtractor"
+    "CLIPImageProcessor"
   ],
   "requires_safety_checker": true,
   "safety_checker": [
@@ -30,4 +30,4 @@
     "diffusers",
     "AutoencoderKL"
   ]
-}
+}