Update requirements.txt to ultralytics 8.0.145 (#11920)

utils/__init__.py

@@ -54,7 +54,7 @@ def notebook_init(verbose=True):
     import os
     import shutil
 
-    from ultralytics.yolo.utils.checks import check_requirements
+    from ultralytics.utils.checks import check_requirements
 
     from utils.general import check_font, is_colab
     from utils.torch_utils import select_device  # imports

utils/general.py

@@ -35,7 +35,7 @@ import pkg_resources as pkg
 import torch
 import torchvision
 import yaml
-from ultralytics.yolo.utils.checks import check_requirements
+from ultralytics.utils.checks import check_requirements
 
 from utils import TryExcept, emojis
 from utils.downloads import curl_download, gsutil_getsize