Add TLS Option for Redis Connections

[obazoud]

Is your feature request related to a problem? Please describe.
Outpost currently does not support enabling TLS for Redis connections.
TLS is required for serverless Redis providers such as Upstash and ElastiCache Serverless Valkey, and is optional but recommended for ElastiCache Valkey, ...

Describe the solution you'd like
Add an option to enable or disable TLS for Redis connections.
For backward compatibility, this option should be by default to false.
However, for security concerns, it is recommended and should be enforced to true.

Describe alternatives you've considered
N/A

Additional context
N/A

[leggetter]

Likely included in #465 cc @alexluong

[obazoud]

I've seen this request. It could be interesting to release this feature before the cluster feature.

[alexluong]

@obazoud would you be open to create a PR for this? If yes, I'd be happy to review the PR and include it in a release asap.

Totally cool if not, I'll look into it a bit tomorrow and see if we can prioritize this ahead of the cluster feature.

[leggetter]

@alexluong I think we should prioritize the cluster work. We have someone waiting for that. I also think it's likely that it'll result in a conflict since there's clearly an overlap.

[alexluong]

hi @obazoud, we released a new version v0.6.0 (breaking change) which supports Redis TLS, can you check that out and see if that works for you?

Also would love to hear your feedback on the migration flow if you're open to sharing!