Jigasi readiness/liveness probes do not use the health check endpoints

[XenonPK]

Hello,

When using this helm chart with jigasi support enabled, I noticed, that the container's readiness/liveness probes are simple tcp probes, instead of using the health check path provided by jigasi.

I would like to propose switching to using a http probe on port 8788, and path /about/health, at least for the liveness probes.

The advantages of this approach are:

• The jigasi component would be able to automatically recover from failure without human intervention, in situations where connectivity to the underlying SIP gateway fails temporarily.

[at-platform24]

https://github.com/jitsi-contrib/jitsi-helm/blob/8f9235c5c9709dc312d47038bac2fff4d54d6765/values.yaml#L328-L333 can be updated to change the default. @XenonPK , would you like to create a PR? As of now it should obviously be possible to override these values.

Also, might be a good idea to add startup probe.