Cloud-on-k8s: Transport certs public secret name is not expected

[sebgl]

Looks like I accidentally changed the name of the transport certs public certificates in https://github.com/elastic/cloud-on-k8s/commit/608642b3e35dc00fa394ae50df732ce486c50848.

It is now (as of 1.1.0) named <cluster>-es-ca-certs-public whereas it used to be <cluster-name>-es-transport-certs-public before this commit (in 1.0.0).

The docs for 1.1.0 mention the (now incorrect) <cluster>-es-transport-certs-public naming scheme.

I see 2 options here:

1. We change it back to <cluster-name>-es-transport-certs-public in a 1.1.1 version.
2. We change the docs to use <cluster>-es-ca-certs-public starting 1.1.0.

Considering we also have <cluster-name>-es-http-certs-public, I think the first option makes more sense.

[barkbay]

I think I would be in favour of a rename to <cluster-name>-es-transport-certs-public
I don't think it is widely used yet and it would make more sense re. http certs.