Support subfolder with `AutoProcessor` (#29169)

enable subfolder

src/transformers/feature_extraction_utils.py

@@ -453,6 +453,7 @@ class FeatureExtractionMixin(PushToHubMixin):
         force_download = kwargs.pop("force_download", False)
         resume_download = kwargs.pop("resume_download", False)
         proxies = kwargs.pop("proxies", None)
+        subfolder = kwargs.pop("subfolder", None)
         token = kwargs.pop("token", None)
         use_auth_token = kwargs.pop("use_auth_token", None)
         local_files_only = kwargs.pop("local_files_only", False)
@@ -502,6 +503,7 @@ class FeatureExtractionMixin(PushToHubMixin):
                     proxies=proxies,
                     resume_download=resume_download,
                     local_files_only=local_files_only,
+                    subfolder=subfolder,
                     token=token,
                     user_agent=user_agent,
                     revision=revision,