feat: Add domain_endpoint_v2_hosted_zone_id to outputs

[YanivZl]

Description

Added a new output, domain_endpoint_v2_hosted_zone_id, to facilitate the creation of Route53 alias records for custom domains in this module.

Motivation and Context

Amazon OpenSearch Service now supports Route 53 alias record for custom endpoint. This enhancement simplifies the process of integrating custom domains by directly providing the hosted zone ID required for Route53 configurations.

Usage Example:

data "aws_acm_certificate" "certificate" {
  domain = local.domain_name
}

data "aws_route53_zone" "this" {
  name = local.domain_name
}

module "opensearch" {
  // Your OpenSearch Configuration...

  ip_address_type = "dualstack"
  domain_endpoint_options = {
    enforce_https       = true
    tls_security_policy = "Policy-Min-TLS-1-2-PFS-2023-10"

    custom_endpoint_enabled         = true
    custom_endpoint                 = "${local.name}.${local.domain_name}"
    custom_endpoint_certificate_arn = data.aws_acm_certificate.certificate.arn
  }
}

module "records" {
  source  = "terraform-aws-modules/route53/aws//modules/records"
  version = "~> 2.0"

  zone_id = data.aws_route53_zone.this.zone_id

  records = [
    {
      name = local.name
      type = "A"
      alias = {
        name    = module.opensearch.domain_endpoint_v2
        zone_id = module.opensearch.domain_endpoint_v2_hosted_zone_id
      }
    }
  ]

  depends_on = [module.opensearch]
}

Breaking Changes

no

How Has This Been Tested?

• I have updated at least one of the examples/* to demonstrate and validate my change(s)
• I have tested and validated these changes using one or more of the provided examples/* projects

• I have executed pre-commit run -a on my pull request

[antonbabenko]

This PR is included in version 1.5.0 🎉