fix: adding sentinelcommands to redis client (#1723)

Co-authored-by: Sam Culley <sam.culley@novatiq.com>

Author: sculley

redis/client.py

@@ -6,7 +6,8 @@
 import threading
 import time
 import warnings
-from redis.commands import CoreCommands, RedisModuleCommands, list_or_args
+from redis.commands import (CoreCommands, RedisModuleCommands,
+                            SentinelCommands, list_or_args)
 from redis.connection import (ConnectionPool, UnixDomainSocketConnection,
                               SSLConnection)
 from redis.lock import Lock
@@ -606,7 +607,7 @@ def parse_set_result(response, **options):
     return response and str_if_bytes(response) == 'OK'
 
 
-class Redis(RedisModuleCommands, CoreCommands, object):
+class Redis(RedisModuleCommands, CoreCommands, SentinelCommands, object):
     """
     Implementation of the Redis protocol.