Update preprocessor_config.json

Change Qwen2_5_VLImageProcessor to Qwen2VLImageProcessor.
due to the merged PR in Transformers https://github.com/huggingface/transformers/pull/36164.

WIthout his PR, the model with cause an error in the latest transformers.

preprocessor_config.json

@@ -8,7 +8,7 @@
     0.4578275,
     0.40821073
   ],
-  "image_processor_type": "Qwen2_5_VLImageProcessor",
+  "image_processor_type": "Qwen2VLImageProcessor",
   "image_std": [
     0.26862954,
     0.26130258,