Add ref_id output to data.ec_deployments

[Crazybus]

Overview

Add ref_id to data.ec_deployments. It is currently only available in data.ec_deployment: https://registry.terraform.io/providers/elastic/ec/latest/docs/data-sources/ec_deployment#elasticsearch.#.ref_id

Possible Implementation

Testing

Context

When adding remote clusters from data.ec_deployments it isn't possible to add clusters which don't have the current default ref_id of main-elasticsearch. Leaving it blanks results in the error message:

deployments.deployment_remote_resource_not_found: Invalid Remote Clusters Configuration. The following resource could not be found:(deployment [removed] - ref_id [main-elasticsearch])

An example of it being used with data.ec_deployment can be seen here:
https://registry.terraform.io/providers/elastic/ec/latest/docs/resources/ec_deployment#with-cross-cluster-search-settings

Your Environment

[marclop]

@Crazybus the example uses the ec_deployment resource, not any of the data resources. I'll work on adding this to the data.ec_deployments so it's available.

[gtback]

I think this got closed accidentally by a comment that was referring to a workaround for this issue.