Trouble creating an EBS Volume with Packer

I’m using this packer configuration, very similar to the documentation for amazon-ebsvolume:

source "amazon-ebsvolume" "data_volume" {
  region = "us-east-2"
  source_ami = "ami-0eb070c40e6a142a3"
  instance_type = "t2.micro"
  ssh_username = "ec2-user"

  ebs_volumes {
    volume_type = "gp3"
    volume_size = 20
    device_name = "/dev/xvdf"
    delete_on_termination = false
    tag {
      key = "Name"
      value = "APIDataVolume"
    }
  }
}

build {
  sources = ["source.amazon-ebsvolume.data_volume"]

  provisioner "shell" {
    inline = [
      "sudo mkfs.ext4 /dev/xvdf",
      "sudo mkdir /mnt/data",
      "sudo mount /dev/xvdf /mnt/data",
      # Don't think we need this
      # "echo '/dev/xvdf /mnt/data ext4 defaults,nofail 0 2' | sudo tee -a /etc/fstab",
      "sudo umount /mnt/data"
    ]
  }
}

However this doesn’t put a name on the volume it creates. I can’t use tags, like the docs say:

ebs_volumes {
    volume_type = "gp3"
    volume_size = 20
    device_name = "/dev/xvdf"
    delete_on_termination = false
    tags {
      Name = "APIDataVolume"
    }
  }

Causes Blocks of type "tag" are not expected here.

I want to use Packer to create a volume that will be reused for persistent data through multiple ec2 instance lifecycles. Am I going about this the wrong way?