Update main.tf

[enterprise-arch]

Without this , Getting error

Error: Invalid reference
│
│ on main.tf line 866, in output "CUSTOM_CONTAINER_IMAGE_PATH":
│ 866: value = "${local.location}-docker.pkg.dev/${local.project_id}/${local.s8s_artifact_repository_nm}/s8s-spark-image:${spark_container_img_tag}"
│
│ A reference to a resource type must be followed by at least one attribute access, specifying the resource name.

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

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[kmting]

Thanks for reporting this error and providing a fix. I couldn't commit your fix due to your missing CLA. Several people were blocked on this fix so I made the change directly.