fix index_manager bug

deploy/shitu_index_manager/inference_drink.yaml

-Global:
-  infer_imgs: "./drink_dataset_v1.0/test_images/hongniu_1.jpg"
-  det_inference_model_dir: "/Users/dongshuilong/Desktop/Index_manager/picodet_PPLCNet_x2_5_mainbody_lite_v1.0_infer"
-  rec_inference_model_dir: "/Users/dongshuilong/Desktop/Index_manager/inference_taml"
-  rec_nms_thresold: 0.05
-
-  batch_size: 1
-  image_shape: [3, 640, 640]
-  threshold: 0.2
-  max_det_results: 5
-  label_list:
-  - foreground
-
-  use_gpu: True
-  enable_mkldnn: False
-  cpu_num_threads: 10
-  enable_benchmark: False
-  use_fp16: False
-  ir_optim: True
-  use_tensorrt: False
-  gpu_mem: 8000
-  enable_profile: False
-
-DetPreProcess:
-  transform_ops:
-    - DetResize:
-        interp: 2
-        keep_ratio: false
-        target_size: [640, 640]
-    - DetNormalizeImage:
-        is_scale: true
-        mean: [0.485, 0.456, 0.406]
-        std: [0.229, 0.224, 0.225]
-    - DetPermute: {}
-
-DetPostProcess: {}
-
-RecPreProcess:
-  transform_ops:
-    - ResizeImage:
-        size: 224
-    - NormalizeImage:
-        scale: 0.00392157
-        mean: [0.485, 0.456, 0.406]
-        std: [0.229, 0.224, 0.225]
-        order: ''
-    - ToCHWImage:
-
-RecPostProcess: null
-
-# indexing engine config
-IndexProcess:
-  index_method: "HNSW32" # supported: HNSW32, IVF, Flat
-  image_root: "./drink_dataset_v1.0/gallery"
-  index_dir:  "./drink_dataset_v1.0/index"
-  data_file:  "./drink_dataset_v1.0/gallery/drink_label.txt"
-  index_operation: "new" # suported: "append", "remove", "new"
-  delimiter: "\t"
-  dist_type: "IP"
-  embedding_size: 512
-  batch_size: 32
-  return_k: 5
-  score_thres: 0.4