change dict path in ppocrv4_doc yaml (#2774)

paddlex/repo_apis/PaddleOCR_api/configs/PP-OCRv4_server_rec_doc.yaml

@@ -13,7 +13,7 @@ Global:
   save_inference_dir:
   use_visualdl: false
   infer_img: doc/imgs_words/ch/word_1.jpg
-  character_dict_path: ppocr/utils/ppocr_keys_v1.txt
+  character_dict_path: ppocr/utils/dict/ppocrv4_doc_dict.txt
   max_text_length: &max_text_length 25
   infer_mode: false
   use_space_char: true