feat(rethinkdb): add tls config auth profile

[sicoyle]

Describe the feature

The ReThinkDB component embeds the rethink connection options here at (state/rethinkdb/rethinkdb.go):

type stateConfig struct {
	r.ConnectOpts `mapstructure:",squash"`
	Archive       bool   `json:"archive"`
	Table         string `json:"table"`
}

This currently works fine for the basic auth using the address, username, pwd. However, the issue is that TLSConfig *tls.Config within ConnectOpts is a pointer to tls.Config that kitmd.DecodeMetadata() cannot automatically unmarshal from string metadata. The mapstructure:",squash" tag flattens all r.ConnectOpts fields into the metadata, but TLSConfig expects a *tls.Config object. The RethinkDB component needs to be updated to handle TLS configuration by adding separate caCert, clientCert, and clientKey string fields to stateConfig, then manually converting them to a *tls.Config before setting ConnectOpts.TLSConfig. The metadata.yaml also needs to reflect a new authenticationProfile.

Release Note

RELEASE NOTE:
Add TLSConfig authentication profile to RethinkDB

[sicoyle]

cc @mchmarny

[sicoyle]

I know there is the r.SetTags("rethinkdb", "json") line but i think we still need to at least double check this and likely make fixes.