Use primary API for huggingface_hub errors (#786)

* Remove duplicate import

* Use the non-private API for hf_hub errors

We were loading from a private module and it looks like the API changed
in 0.25 (see Azure errors). This moves to using the public `errors`
module, which should be less likely to break without warning.

deepforest/utilities.py

@@ -11,7 +11,6 @@
 
 from PIL import Image
 from deepforest import _ROOT
-import json
 import warnings
 import geopandas as gpd
 import rasterio
@@ -21,7 +20,7 @@
 import json
 import urllib.request
 from huggingface_hub import hf_hub_download
-from huggingface_hub.utils._errors import RevisionNotFoundError, HfHubHTTPError
+from huggingface_hub.errors import RevisionNotFoundError, HfHubHTTPError
 
 
 def read_config(config_path):