Update CHANGELOG.md for #31384

Author: changelogbot

CHANGELOG.md

@@ -75,6 +75,7 @@ NOTES:
 * resource/aws_api_gateway_rest_api: Update configurations with `minimum_compression_size` set to pass the value as a string. Valid values remain the same. ([#30969](https://github.com/hashicorp/terraform-provider-aws/issues/30969))
 * resource/aws_autoscaling_attachment: Update configurations to use `lb_target_group_arn` instead of `alb_target_group_arn` which has been removed ([#30828](https://github.com/hashicorp/terraform-provider-aws/issues/30828))
 * resource/aws_docdb_cluster: Changes to the `snapshot_identifier` attribute will now trigger a replacement, rather than an in-place update. This corrects the previous behavior which resulted in a successful apply, but did not actually restore the cluster from the designated snapshot. ([#29409](https://github.com/hashicorp/terraform-provider-aws/issues/29409))
+* resource/aws_dx_gateway_association: The `vpn_gateway_id` attribute has been deprecated. All configurations using `vpn_gateway_id` should be updated to use the `associated_gateway_id` attribute instead ([#31384](https://github.com/hashicorp/terraform-provider-aws/issues/31384))
 * resource/aws_elasticache_replication_group: Update configurations to use `description` instead of the `replication_group_description` argument ([#31008](https://github.com/hashicorp/terraform-provider-aws/issues/31008))
 * resource/aws_elasticache_replication_group: Update configurations to use `num_cache_clusters` instead of the `number_cache_clusters` argument ([#31008](https://github.com/hashicorp/terraform-provider-aws/issues/31008))
 * resource/aws_elasticache_replication_group: Update configurations to use `preferred_cache_cluster_azs` instead of the `availability_zones` argument ([#31008](https://github.com/hashicorp/terraform-provider-aws/issues/31008))