No Documentation for the `DeleteMarker` value of ilm policy's `expiration` field

[michaelruigrok]

Prerequisites

• Be sure that theres no open issue already.

Description

The ilm policy resource may have its expiration field set to "DeleteMarker", however this is not documented in the Terraform docs

Steps to Reproduce

1. Go to https://registry.terraform.io/providers/aminueza/minio/latest/docs/resources/ilm_policy#schema
2. Try and learn how to expire delete markers
3. Fail

[michaelruigrok]

As well as the schema documentation I've provided, it would be good to have a proper example, however I wasn't sure how to add supplemental examples to the existing format.

resource "minio_s3_bucket" "bucket" {
  bucket = "bucket"
}

resource "minio_ilm_policy" "bucket-lifecycle-rules" {
  bucket = minio_s3_bucket.bucket.bucket

  rule {
    id         = "expire-7d"
    expiration = "DeleteMarker"
    noncurrent_version_expiration_days = 40
  }
}