fix eslav train yaml

paddlex/repo_apis/PaddleOCR_api/configs/eslav_PP-OCRv5_mobile_rec.yaml

@@ -14,7 +14,7 @@ Global:
   save_inference_dir:
   use_visualdl: false
   infer_img:
-  character_dict_path: ./ppocr/utils/dict/eslav_dict.txt
+  character_dict_path: ./ppocr/utils/dict/ppocrv5_eslav_dict.txt
   max_text_length: &max_text_length 25
   infer_mode: false
   use_space_char: true