[chart/redis-ha] Make exporter probes optional

[sonrai-doyle]

What this PR does / why we need it:

This adds the option to remove the livenessProbe and readinessProbe from the exporter container.

Which issue this PR fixes

Special notes for your reviewer:

Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• [x] DCO signed
• [x] Chart Version bumped
• [x] Variables are documented in the README.md
• [x] Title of the PR starts with chart name (e.g. [stable/mychartname])

[DandyDeveloper]

@sonrai-doyle May be better here to do a toYaml templating for the probes that way if people want to remove it they just add the following to the values file:

livenessProbe: {}

[DandyDeveloper]

@sonrai-doyle Any way you can update / give input on my comment? Will close soon if I don't hear from you.,

[sonrai-doyle]

Sorry @DandyDeveloper missed your comment while I was away on vacation. Will look at making the suggested change as I can.

[mhkarimi1383]

+1 Waiting for this, sometimes Redis wants to recover, and we want exporter to be enabled (without probes) since it will get timeouts, etc. and makes entire pod to be unavailable.

[sonrai-doyle]

@DandyDeveloper Sorry for the delay in addressing your comments. Would you be able to re-review?

[mhkarimi1383]

@sonrai-doyle But that would be better if we can make all of the probes optional (some times we want to disable probes for all of the containers for debugging, etc.)