fix(download): Fix download url by reverting change (openai#197)

Co-authored-by: James Chua <[email protected]>

Author: thejaminator

openai/api_resources/file.py

@@ -138,14 +138,9 @@ def __prepare_file_download(
 
         if typed_api_type in (ApiType.AZURE, ApiType.AZURE_AD):
             base = cls.class_url()
-            url = "/%s%s/%s?api-version=%s" % (
-                cls.azure_api_prefix,
-                base,
-                id,
-                api_version,
-            )
+            url = f"/{cls.azure_api_prefix}{base}/{id}/content?api-version={api_version}"
         elif typed_api_type == ApiType.OPEN_AI:
-            url = "%s/%s" % (cls.class_url(), id)
+            url = f"{cls.class_url()}/{id}/content"
         else:
             raise error.InvalidAPIType("Unsupported API type %s" % api_type)