Update LDAP Caching Options

Update LDAP caching configuration to match changes made to django-auth-ldap in 1.6.0

Django social auth now uses different cache configuration options: https://github.com/django-auth-ldap/django-auth-ldap/blob/master/django_auth_ldap/backend.py#L1041-L1056

NetBox settings.py reference: https://github.com/netbox-community/netbox/blob/master/netbox/netbox/settings.py#L360

Author: newlandk

configuration/ldap_config.py

@@ -70,8 +70,7 @@ def import_group_type(group_type_name):
 AUTH_LDAP_FIND_GROUP_PERMS = os.environ.get('AUTH_LDAP_FIND_GROUP_PERMS', 'True').lower() == 'true'
 
 # Cache groups for one hour to reduce LDAP traffic
-AUTH_LDAP_CACHE_GROUPS = os.environ.get('AUTH_LDAP_CACHE_GROUPS', 'True').lower() == 'true'
-AUTH_LDAP_GROUP_CACHE_TIMEOUT = int(os.environ.get('AUTH_LDAP_GROUP_CACHE_TIMEOUT', 3600))
+AUTH_LDAP_CACHE_TIMEOUT = = int(os.environ.get('AUTH_LDAP_CACHE_TIMEOUT', 3600))
 
 # Populate the Django user from the LDAP directory.
 AUTH_LDAP_USER_ATTR_MAP = {