Update kv.Update() doc to mention TTL

[fmontorsi-equinix]

Proposed change

In the docs for the KeyValue.Update() method (https://pkg.go.dev/github.com/nats-io/nats.go/jetstream#KeyValue.Update) there is no mention of what happens to the TTL associated with the key.
I think/hope that the TTL gets reset.
I think docs should be enhanced to mention that.

Use case

Since Jetstream KV supports TTL, there must be a way to extend TTL somehow...

Contribution

I can contribute the doc enhancement, sure

[Jarema]

You are right. The TTL will get refreshed.
We're happy to accept contribution here!

[fmontorsi-equinix]

You are right. The TTL will get refreshed. We're happy to accept contribution here!

Ok thanks for confirming that. I opened #1727 to update the docs