chore: adjust account info for api

This commit adds backfill support for the
old account info api, as the session implementation
still relies on this (v2 is not fully complete)

Author: ehossack

django_backblaze_b2/cache_account_info.py

@@ -4,6 +4,7 @@
 from typing import Iterable, Optional, Tuple
 
 from b2sdk.account_info.upload_url_pool import UrlPoolAccountInfo
+from b2sdk.v1.account_info import OldAccountInfoMethods
 from b2sdk.v1.exception import MissingAccountData
 from django.core.cache import InvalidCacheBackendError, caches
 from django.core.exceptions import ImproperlyConfigured
@@ -33,7 +34,7 @@ def getter_function(*args, **kwargs):
     return getter_function
 
 
-class DjangoCacheAccountInfo(UrlPoolAccountInfo):
+class DjangoCacheAccountInfo(UrlPoolAccountInfo, OldAccountInfoMethods):
     """
     Store account information in django's cache: https://docs.djangoproject.com/en/3.1/topics/cache
     """