Feature/fix redis

[xXLXx]

Fix redis issues

• Update listening for ready connection to .on('ready') since .on('connect') will be confusing as this gets triggered on first node connect
• Updated structure of listener for connection to be an await rather like in front-end js connection
• Removed .connect() as this is only needed in non cluster connections
• Add optional clusterOptions so we can pass in case of tls use, which is by default removed
• Update setRedis cache to consider empty value such as array empty