RedisParser (C-ext) ignore decode_responses (only from pypi)

[scailer]

Hi!

I always thinking than decode_responses works only with PyRedisParser, but when looked to the code understand what something wrong.

When I install pulsar from source code - decoding works, when install from pypi - don't works. Check on different environs and systems, it's can't be local cache or etc.

redis = create_store(redis_server, decode_responses=True, loop=loop)

Thanks!