Update production.py for redis issue

[nerdyk3]

Why was this change necessary?

I was facing an issue during the deployment of the application with settings.production. It is a problem of redis.connection.HiredisParse it must be redis.connection._HiredisParse.

How does it address the problem?

Not able to make the application live using settings.production.

Are there any side effects?

No, it is a fix of a library